157218400 has 36 divisors (see below), whose sum is σ = 383811372. Its totient is φ = 62887040.

The previous prime is 157218389. The next prime is 157218401. The reversal of 157218400 is 4812751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157218401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 97462 + ... + 99061.

It is an arithmetic number, because the mean of its divisors is an integer number (10661427).

Almost surely, 2^157218400 is an apocalyptic number.

157218400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157218400 is an abundant number, since it is smaller than the sum of its proper divisors (226592972).

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

157218400 is a wasteful number, since it uses less digits than its factorization.

157218400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196543 (or 196530 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 157218400 is about 12538.6761661668. The cubic root of 157218400 is about 539.7191040238.

The spelling of 157218400 in words is "one hundred fifty-seven million, two hundred eighteen thousand, four hundred".