157747472 has 40 divisors (see below), whose sum is σ = 317390400. Its totient is φ = 75861632.

The previous prime is 157747441. The next prime is 157747483. The reversal of 157747472 is 274747751.

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, 166103 + ... + 167049.

It is an arithmetic number, because the mean of its divisors is an integer number (7934760).

Almost surely, 2^157747472 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 157747472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158695200).

157747472 is an abundant number, since it is smaller than the sum of its proper divisors (159642928).

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

157747472 is a wasteful number, since it uses less digits than its factorization.

157747472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343 (or 1337 counting only the distinct ones).

The product of its digits is 384160, while the sum is 44.

The square root of 157747472 is about 12559.7560485863. The cubic root of 157747472 is about 540.3238478105.

The spelling of 157747472 in words is "one hundred fifty-seven million, seven hundred forty-seven thousand, four hundred seventy-two".