157742472 has 32 divisors (see below), whose sum is σ = 395452800. Its totient is φ = 52434624.

The previous prime is 157742461. The next prime is 157742489. The reversal of 157742472 is 274247751.

157742472 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 157742472.

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, 147 + ... + 17762.

It is an arithmetic number, because the mean of its divisors is an integer number (12357900).

Almost surely, 2^157742472 is an apocalyptic number.

157742472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157742472 is an abundant number, since it is smaller than the sum of its proper divisors (237710328).

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

157742472 is a wasteful number, since it uses less digits than its factorization.

157742472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18285 (or 18281 counting only the distinct ones).

The product of its digits is 109760, while the sum is 39.

The square root of 157742472 is about 12559.5569985569. The cubic root of 157742472 is about 540.3181390074.

The spelling of 157742472 in words is "one hundred fifty-seven million, seven hundred forty-two thousand, four hundred seventy-two".