1157904784 has 45 divisors (see below), whose sum is σ = 2304922881. Its totient is φ = 563503680.

The previous prime is 1157904763. The next prime is 1157904809. The reversal of 1157904784 is 4874097511.

It is a happy number.

The square root of 1157904784 is 34028.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 12759184 + 1145145600 = 3572^2 + 33840^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6397174 + ... + 6397354.

Almost surely, 2^1157904784 is an apocalyptic number.

1157904784 is the 34028-th square number.

It is an amenable number.

1157904784 is a deficient number, since it is larger than the sum of its proper divisors (1147018097).

1157904784 is an frugal number, since it uses more digits than its factorization.

1157904784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 46.

The cubic root of 1157904784 is about 1050.0845839646.

The spelling of 1157904784 in words is "one billion, one hundred fifty-seven million, nine hundred four thousand, seven hundred eighty-four".