157910840 has 16 divisors (see below), whose sum is σ = 355299480. Its totient is φ = 63164320.

The previous prime is 157910839. The next prime is 157910861. The reversal of 157910840 is 48019751.

It is a self number, because there is not a number n which added to its sum of digits gives 157910840.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1973846 + ... + 1973925.

Almost surely, 2^157910840 is an apocalyptic number.

157910840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157910840 is an abundant number, since it is smaller than the sum of its proper divisors (197388640).

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

157910840 is a wasteful number, since it uses less digits than its factorization.

157910840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3947782 (or 3947778 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 157910840 is about 12566.2579951233. The cubic root of 157910840 is about 540.5103086362.

The spelling of 157910840 in words is "one hundred fifty-seven million, nine hundred ten thousand, eight hundred forty".