1420451343 has 32 divisors (see below), whose sum is σ = 2262297600. Its totient is φ = 878024448.

The previous prime is 1420451339. The next prime is 1420451353. The reversal of 1420451343 is 3431540241.

It is a happy number.

1420451343 is a `hidden beast` number, since 142 + 0 + 4 + 513 + 4 + 3 = 666.

It is not a de Polignac number, because 1420451343 - 2² = 1420451339 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420451353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5346 + ... + 53567.

It is an arithmetic number, because the mean of its divisors is an integer number (70696800).

Almost surely, 2^1420451343 is an apocalyptic number.

1420451343 is a deficient number, since it is larger than the sum of its proper divisors (841846257).

1420451343 is a wasteful number, since it uses less digits than its factorization.

1420451343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58988 (or 58982 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1420451343 is about 37688.8755868360. The cubic root of 1420451343 is about 1124.1099377761.

Adding to 1420451343 its reverse (3431540241), we get a palindrome (4851991584).

The spelling of 1420451343 in words is "one billion, four hundred twenty million, four hundred fifty-one thousand, three hundred forty-three".