156402864 has 120 divisors (see below), whose sum is σ = 457002000. Its totient is φ = 49889280.

The previous prime is 156402859. The next prime is 156402877. The reversal of 156402864 is 468204651.

156402864 is a `hidden beast` number, since 1 + 5 + 640 + 2 + 8 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 348112 + ... + 348560.

It is an arithmetic number, because the mean of its divisors is an integer number (3808350).

Almost surely, 2^156402864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156402864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228501000).

156402864 is an abundant number, since it is smaller than the sum of its proper divisors (300599136).

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

156402864 is a wasteful number, since it uses less digits than its factorization.

156402864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 554 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 156402864 is about 12506.1130652173. The cubic root of 156402864 is about 538.7842608617.

The spelling of 156402864 in words is "one hundred fifty-six million, four hundred two thousand, eight hundred sixty-four".