30556413 has 32 divisors (see below), whose sum is σ = 47241600. Its totient is φ = 19502208.

The previous prime is 30556411. The next prime is 30556417. The reversal of 30556413 is 31465503.

It is not a de Polignac number, because 30556413 - 2¹ = 30556411 is a prime.

It is a super-4 number, since 4×30556413⁴ (a number of 31 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30556411) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 72718 + ... + 73136.

It is an arithmetic number, because the mean of its divisors is an integer number (1476300).

Almost surely, 2^30556413 is an apocalyptic number.

It is an amenable number.

30556413 is a deficient number, since it is larger than the sum of its proper divisors (16685187).

30556413 is a wasteful number, since it uses less digits than its factorization.

30556413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 30556413 is about 5527.7855421498. The cubic root of 30556413 is about 312.6325001852.

The spelling of 30556413 in words is "thirty million, five hundred fifty-six thousand, four hundred thirteen".