157649910 has 32 divisors (see below), whose sum is σ = 412756992. Its totient is φ = 38218080.

The previous prime is 157649903. The next prime is 157649923. The reversal of 157649910 is 19946751.

157649910 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×157649910³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238534 + ... + 239193.

It is an arithmetic number, because the mean of its divisors is an integer number (12898656).

Almost surely, 2^157649910 is an apocalyptic number.

157649910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157649910 is an abundant number, since it is smaller than the sum of its proper divisors (255107082).

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

157649910 is a wasteful number, since it uses less digits than its factorization.

157649910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477748.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 157649910 is about 12555.8715348637. The cubic root of 157649910 is about 540.2124335654.

The spelling of 157649910 in words is "one hundred fifty-seven million, six hundred forty-nine thousand, nine hundred ten".