1157074988 has 24 divisors (see below), whose sum is σ = 2049477024. Its totient is φ = 571536000.

The previous prime is 1157074979. The next prime is 1157075021. The reversal of 1157074988 is 8894707511.

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, 193808 + ... + 199688.

It is an arithmetic number, because the mean of its divisors is an integer number (85394876).

Almost surely, 2^1157074988 is an apocalyptic number.

It is an amenable number.

1157074988 is a deficient number, since it is larger than the sum of its proper divisors (892402036).

1157074988 is a wasteful number, since it uses less digits than its factorization.

1157074988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6473 (or 6471 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 50.

The square root of 1157074988 is about 34015.8049735707. The cubic root of 1157074988 is about 1049.8336812909.

The spelling of 1157074988 in words is "one billion, one hundred fifty-seven million, seventy-four thousand, nine hundred eighty-eight".