1426249845 has 24 divisors (see below), whose sum is σ = 2512698552. Its totient is φ = 748195200.

The previous prime is 1426249823. The next prime is 1426249861. The reversal of 1426249845 is 5489426241.

It is a happy number.

1426249845 is a `hidden beast` number, since 14 + 2 + 624 + 9 + 8 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 74805201 + 1351444644 = 8649^2 + 36762^2 .

It is not a de Polignac number, because 1426249845 - 2¹³ = 1426241653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 1426249845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 257046 + ... + 262535.

It is an arithmetic number, because the mean of its divisors is an integer number (104695773).

Almost surely, 2^1426249845 is an apocalyptic number.

1426249845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1426249845 is a deficient number, since it is larger than the sum of its proper divisors (1086448707).

1426249845 is a wasteful number, since it uses less digits than its factorization.

1426249845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519653 (or 519650 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 1426249845 is about 37765.7231494380. The cubic root of 1426249845 is about 1125.6374579886.

The spelling of 1426249845 in words is "one billion, four hundred twenty-six million, two hundred forty-nine thousand, eight hundred forty-five".