156474420 has 48 divisors (see below), whose sum is σ = 448324800. Its totient is φ = 40755456.

The previous prime is 156474419. The next prime is 156474449. The reversal of 156474420 is 24474651.

It is a super-2 number, since 2×156474420² = 48968488228672800, which contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 27745 + ... + 32904.

It is an arithmetic number, because the mean of its divisors is an integer number (9340100).

Almost surely, 2^156474420 is an apocalyptic number.

156474420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156474420 is an abundant number, since it is smaller than the sum of its proper divisors (291850380).

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

156474420 is a wasteful number, since it uses less digits than its factorization.

156474420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60704 (or 60702 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 156474420 is about 12508.9735789952. The cubic root of 156474420 is about 538.8664148742.

The spelling of 156474420 in words is "one hundred fifty-six million, four hundred seventy-four thousand, four hundred twenty".