1434439845 has 12 divisors (see below), whose sum is σ = 2486362476. Its totient is φ = 765034560.

The previous prime is 1434439841. The next prime is 1434439849. The reversal of 1434439845 is 5489344341.

It is an interprime number because it is at equal distance from previous prime (1434439841) and next prime (1434439849).

It can be written as a sum of positive squares in 2 ways, for example, as 757295361 + 677144484 = 27519^2 + 26022^2 .

It is not a de Polignac number, because 1434439845 - 2² = 1434439841 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 31876441 = 1434439845 / (1 + 4 + 3 + 4 + 4 + 3 + 9 + 8 + 4 + 5).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1434439845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1434439841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15938176 + ... + 15938265.

It is an arithmetic number, because the mean of its divisors is an integer number (207196873).

Almost surely, 2^1434439845 is an apocalyptic number.

1434439845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1434439845 is a deficient number, since it is larger than the sum of its proper divisors (1051922631).

1434439845 is a wasteful number, since it uses less digits than its factorization.

1434439845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31876452 (or 31876449 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 1434439845 is about 37873.9995907483. Note that the first 3 decimals coincide. The cubic root of 1434439845 is about 1127.7879415950.

The spelling of 1434439845 in words is "one billion, four hundred thirty-four million, four hundred thirty-nine thousand, eight hundred forty-five".