1057156456 has 16 divisors (see below), whose sum is σ = 1992132000. Its totient is φ = 525921264.

The previous prime is 1057156427. The next prime is 1057156481. The reversal of 1057156456 is 6546517501.

It is a super-2 number, since 2×1057156456² = 2235159544924959872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330430 + ... + 333613.

It is an arithmetic number, because the mean of its divisors is an integer number (124508250).

Almost surely, 2^1057156456 is an apocalyptic number.

It is an amenable number.

1057156456 is a deficient number, since it is larger than the sum of its proper divisors (934975544).

1057156456 is a wasteful number, since it uses less digits than its factorization.

1057156456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664248 (or 664244 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 40.

The square root of 1057156456 is about 32513.9424862627. The cubic root of 1057156456 is about 1018.7002719978.

The spelling of 1057156456 in words is "one billion, fifty-seven million, one hundred fifty-six thousand, four hundred fifty-six".