157939428 has 24 divisors (see below), whose sum is σ = 370460160. Its totient is φ = 52370080.

The previous prime is 157939403. The next prime is 157939433. The reversal of 157939428 is 824939751.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32163 + ... + 36746.

It is an arithmetic number, because the mean of its divisors is an integer number (15435840).

Almost surely, 2^157939428 is an apocalyptic number.

It is an amenable number.

157939428 is an abundant number, since it is smaller than the sum of its proper divisors (212520732).

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

157939428 is a wasteful number, since it uses less digits than its factorization.

157939428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69107 (or 69105 counting only the distinct ones).

The product of its digits is 544320, while the sum is 48.

The square root of 157939428 is about 12567.3954342179. The cubic root of 157939428 is about 540.5429244598.

The spelling of 157939428 in words is "one hundred fifty-seven million, nine hundred thirty-nine thousand, four hundred twenty-eight".