157242204 has 36 divisors (see below), whose sum is σ = 454255984. Its totient is φ = 44926272.

The previous prime is 157242187. The next prime is 157242223. The reversal of 157242204 is 402242751.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×157242204² = 49450221437555232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 311737 + ... + 312240.

Almost surely, 2^157242204 is an apocalyptic number.

157242204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

157242204 is an abundant number, since it is smaller than the sum of its proper divisors (297013780).

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

157242204 is a wasteful number, since it uses less digits than its factorization.

157242204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623994 (or 623989 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 157242204 is about 12539.6253532552. The cubic root of 157242204 is about 539.7463417712.

Adding to 157242204 its reverse (402242751), we get a palindrome (559484955).

The spelling of 157242204 in words is "one hundred fifty-seven million, two hundred forty-two thousand, two hundred four".