1140392456 has 16 divisors (see below), whose sum is σ = 2443698240. Its totient is φ = 488739600.

The previous prime is 1140392447. The next prime is 1140392471. The reversal of 1140392456 is 6542930411.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10182020 + ... + 10182131.

It is an arithmetic number, because the mean of its divisors is an integer number (152731140).

Almost surely, 2^1140392456 is an apocalyptic number.

It is an amenable number.

1140392456 is an abundant number, since it is smaller than the sum of its proper divisors (1303305784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1140392456 is a wasteful number, since it uses less digits than its factorization.

1140392456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20364164 (or 20364160 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1140392456 is about 33769.6973039440. The cubic root of 1140392456 is about 1044.7637893193.

The spelling of 1140392456 in words is "one billion, one hundred forty million, three hundred ninety-two thousand, four hundred fifty-six".