157402680 has 32 divisors (see below), whose sum is σ = 472208400. Its totient is φ = 41974016.

The previous prime is 157402667. The next prime is 157402709. The reversal of 157402680 is 86204751.

It is a congruent number.

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, 655725 + ... + 655964.

Almost surely, 2^157402680 is an apocalyptic number.

157402680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157402680 is an abundant number, since it is smaller than the sum of its proper divisors (314805720).

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

157402680 is a wasteful number, since it uses less digits than its factorization.

157402680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311703 (or 1311699 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 157402680 is about 12546.0224772635. The cubic root of 157402680 is about 539.9298948771.

The spelling of 157402680 in words is "one hundred fifty-seven million, four hundred two thousand, six hundred eighty".