157830772 has 24 divisors (see below), whose sum is σ = 301688352. Its totient is φ = 71652000.

The previous prime is 157830727. The next prime is 157830773. The reversal of 157830772 is 277038751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157830773) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 44538 + ... + 47950.

It is an arithmetic number, because the mean of its divisors is an integer number (12570348).

Almost surely, 2^157830772 is an apocalyptic number.

It is an amenable number.

157830772 is a deficient number, since it is larger than the sum of its proper divisors (143857580).

157830772 is a wasteful number, since it uses less digits than its factorization.

157830772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4479 (or 4477 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 40.

The square root of 157830772 is about 12563.0717581330. The cubic root of 157830772 is about 540.4189387298.

The spelling of 157830772 in words is "one hundred fifty-seven million, eight hundred thirty thousand, seven hundred seventy-two".