157791328 has 24 divisors (see below), whose sum is σ = 311999688. Its totient is φ = 78553344.

The previous prime is 157791317. The next prime is 157791367. The reversal of 157791328 is 823197751.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3126 + ... + 18037.

It is an arithmetic number, because the mean of its divisors is an integer number (12999987).

Almost surely, 2^157791328 is an apocalyptic number.

It is an amenable number.

157791328 is a deficient number, since it is larger than the sum of its proper divisors (154208360).

157791328 is a wasteful number, since it uses less digits than its factorization.

157791328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21406 (or 21398 counting only the distinct ones).

The product of its digits is 105840, while the sum is 43.

The square root of 157791328 is about 12561.5018210403. The cubic root of 157791328 is about 540.3739156959.

The spelling of 157791328 in words is "one hundred fifty-seven million, seven hundred ninety-one thousand, three hundred twenty-eight".