157538844 has 72 divisors (see below), whose sum is σ = 419900208. Its totient is φ = 51632640.

The previous prime is 157538839. The next prime is 157538863. The reversal of 157538844 is 448835751.

157538844 is a `hidden beast` number, since 1 + 575 + 38 + 8 + 44 = 666.

157538844 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 157538844.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57964 + ... + 60620.

Almost surely, 2^157538844 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157538844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209950104).

157538844 is an abundant number, since it is smaller than the sum of its proper divisors (262361364).

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

157538844 is a wasteful number, since it uses less digits than its factorization.

157538844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737 (or 2723 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 157538844 is about 12551.4478846068. The cubic root of 157538844 is about 540.0855420040.

The spelling of 157538844 in words is "one hundred fifty-seven million, five hundred thirty-eight thousand, eight hundred forty-four".