1157904290 has 8 divisors (see below), whose sum is σ = 2084227740. Its totient is φ = 463161712.

The previous prime is 1157904287. The next prime is 1157904331. The reversal of 1157904290 is 924097511.

It can be written as a sum of positive squares in 2 ways, for example, as 1054495729 + 103408561 = 32473^2 + 10169^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 57895205 + ... + 57895224.

Almost surely, 2^1157904290 is an apocalyptic number.

1157904290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1157904290 is a deficient number, since it is larger than the sum of its proper divisors (926323450).

1157904290 is a wasteful number, since it uses less digits than its factorization.

1157904290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115790436.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 1157904290 is about 34027.9927412711. The cubic root of 1157904290 is about 1050.0844346311.

The spelling of 1157904290 in words is "one billion, one hundred fifty-seven million, nine hundred four thousand, two hundred ninety".