1157823856 has 40 divisors (see below), whose sum is σ = 2565768320. Its totient is φ = 495820224.

The previous prime is 1157823829. The next prime is 1157823871. The reversal of 1157823856 is 6583287511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173575 + ... + 180121.

It is an arithmetic number, because the mean of its divisors is an integer number (64144208).

Almost surely, 2^1157823856 is an apocalyptic number.

1157823856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1157823856 is an abundant number, since it is smaller than the sum of its proper divisors (1407944464).

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

1157823856 is a wasteful number, since it uses less digits than its factorization.

1157823856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8141 (or 8135 counting only the distinct ones).

The product of its digits is 403200, while the sum is 46.

The square root of 1157823856 is about 34026.8108408649. The cubic root of 1157823856 is about 1050.0601193090.

The spelling of 1157823856 in words is "one billion, one hundred fifty-seven million, eight hundred twenty-three thousand, eight hundred fifty-six".