157702938 has 16 divisors (see below), whose sum is σ = 317170080. Its totient is φ = 52273616.

The previous prime is 157702903. The next prime is 157702939. The reversal of 157702938 is 839207751.

157702938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 157702938.

It is not an unprimeable number, because it can be changed into a prime (157702939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72345 + ... + 74492.

It is an arithmetic number, because the mean of its divisors is an integer number (19823130).

Almost surely, 2^157702938 is an apocalyptic number.

157702938 is an abundant number, since it is smaller than the sum of its proper divisors (159467142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157702938 is a wasteful number, since it uses less digits than its factorization.

157702938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147021.

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 157702938 is about 12557.9830386890. The cubic root of 157702938 is about 540.2729963944.

The spelling of 157702938 in words is "one hundred fifty-seven million, seven hundred two thousand, nine hundred thirty-eight".