157840432 has 40 divisors (see below), whose sum is σ = 311364000. Its totient is φ = 77501952.

The previous prime is 157840379. The next prime is 157840433. The reversal of 157840432 is 234048751.

It is not an unprimeable number, because it can be changed into a prime (157840433) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 283098 + ... + 283654.

It is an arithmetic number, because the mean of its divisors is an integer number (7784100).

Almost surely, 2^157840432 is an apocalyptic number.

It is an amenable number.

157840432 is a deficient number, since it is larger than the sum of its proper divisors (153523568).

157840432 is a wasteful number, since it uses less digits than its factorization.

157840432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853 (or 847 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 157840432 is about 12563.4562123645. The cubic root of 157840432 is about 540.4299639149.

The spelling of 157840432 in words is "one hundred fifty-seven million, eight hundred forty thousand, four hundred thirty-two".