156064420 has 24 divisors (see below), whose sum is σ = 347014584. Its totient is φ = 58753536.

The previous prime is 156064417. The next prime is 156064439. The reversal of 156064420 is 24460651.

It can be written as a sum of positive squares in 4 ways, for example, as 72012196 + 84052224 = 8486^2 + 9168^2 .

It is a super-2 number, since 2×156064420² = 48712206379872800, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 229167 + ... + 229846.

It is an arithmetic number, because the mean of its divisors is an integer number (14458941).

Almost surely, 2^156064420 is an apocalyptic number.

156064420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156064420 is an abundant number, since it is smaller than the sum of its proper divisors (190950164).

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

156064420 is a wasteful number, since it uses less digits than its factorization.

156064420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459039 (or 459037 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 156064420 is about 12492.5745945341. The cubic root of 156064420 is about 538.3953507028.

The spelling of 156064420 in words is "one hundred fifty-six million, sixty-four thousand, four hundred twenty".