157477638 has 16 divisors (see below), whose sum is σ = 322637616. Its totient is φ = 51212160.

The previous prime is 157477637. The next prime is 157477693. The reversal of 157477638 is 836774751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157477631) 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, 319831 + ... + 320322.

It is an arithmetic number, because the mean of its divisors is an integer number (20164851).

Almost surely, 2^157477638 is an apocalyptic number.

157477638 is an abundant number, since it is smaller than the sum of its proper divisors (165159978).

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

157477638 is a wasteful number, since it uses less digits than its factorization.

157477638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640199.

The product of its digits is 987840, while the sum is 48.

The square root of 157477638 is about 12549.0094429800. The cubic root of 157477638 is about 540.0155893990.

The spelling of 157477638 in words is "one hundred fifty-seven million, four hundred seventy-seven thousand, six hundred thirty-eight".