30456156 has 24 divisors (see below), whose sum is σ = 71865360. Its totient is φ = 10037632.

The previous prime is 30456149. The next prime is 30456187. The reversal of 30456156 is 65165403.

It is a super-3 number, since 3×30456156³ (a number of 23 digits) contains 333 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 7 ways as a sum of consecutive naturals, for example, 13191 + ... + 15326.

It is an arithmetic number, because the mean of its divisors is an integer number (2994390).

Almost surely, 2^30456156 is an apocalyptic number.

It is an amenable number.

30456156 is an abundant number, since it is smaller than the sum of its proper divisors (41409204).

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

30456156 is a wasteful number, since it uses less digits than its factorization.

30456156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28613 (or 28611 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 30456156 is about 5518.7096317889. The cubic root of 30456156 is about 312.2902050002.

The spelling of 30456156 in words is "thirty million, four hundred fifty-six thousand, one hundred fifty-six".