156040424 has 32 divisors (see below), whose sum is σ = 300956040. Its totient is φ = 75801600.

The previous prime is 156040403. The next prime is 156040429. The reversal of 156040424 is 424040651.

It can be written as a sum of positive squares in 4 ways, for example, as 99640324 + 56400100 = 9982^2 + 7510^2 .

It is a super-2 number, since 2×156040424² = 48697227844199552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 156040393 and 156040402.

It is not an unprimeable number, because it can be changed into a prime (156040429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91322 + ... + 93014.

Almost surely, 2^156040424 is an apocalyptic number.

It is an amenable number.

156040424 is a deficient number, since it is larger than the sum of its proper divisors (144915616).

156040424 is a wasteful number, since it uses less digits than its factorization.

156040424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021 (or 2017 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 156040424 is about 12491.6141470988. The cubic root of 156040424 is about 538.3677552671.

The spelling of 156040424 in words is "one hundred fifty-six million, forty thousand, four hundred twenty-four".