156382720 has 160 divisors (see below), whose sum is σ = 417973248. Its totient is φ = 55738368.

The previous prime is 156382669. The next prime is 156382729. The reversal of 156382720 is 27283651.

It is a happy number.

156382720 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (160).

It is a super-2 number, since 2×156382720² = 48911110229196800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156382729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1231297 + ... + 1231423.

Almost surely, 2^156382720 is an apocalyptic number.

156382720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156382720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208986624).

156382720 is an abundant number, since it is smaller than the sum of its proper divisors (261590528).

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

156382720 is a wasteful number, since it uses less digits than its factorization.

156382720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 156382720 is about 12505.3076731442. The cubic root of 156382720 is about 538.7611288553.

The spelling of 156382720 in words is "one hundred fifty-six million, three hundred eighty-two thousand, seven hundred twenty".