157864328 has 16 divisors (see below), whose sum is σ = 300414480. Its totient is φ = 77753808.

The previous prime is 157864303. The next prime is 157864339. The reversal of 157864328 is 823468751.

It is a super-2 number, since 2×157864328² = 49842292109783168, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146726 + ... + 147797.

It is an arithmetic number, because the mean of its divisors is an integer number (18775905).

Almost surely, 2^157864328 is an apocalyptic number.

It is an amenable number.

157864328 is a deficient number, since it is larger than the sum of its proper divisors (142550152).

157864328 is a wasteful number, since it uses less digits than its factorization.

157864328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294596 (or 294592 counting only the distinct ones).

The product of its digits is 322560, while the sum is 44.

The square root of 157864328 is about 12564.4071885625. The cubic root of 157864328 is about 540.4572350490.

The spelling of 157864328 in words is "one hundred fifty-seven million, eight hundred sixty-four thousand, three hundred twenty-eight".