30913224 has 16 divisors (see below), whose sum is σ = 77283120. Its totient is φ = 10304400.

The previous prime is 30913213. The next prime is 30913261. The reversal of 30913224 is 42231903.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 1288051 = 30913224 / (3 + 0 + 9 + 1 + 3 + 2 + 2 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 30913194 and 30913203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644002 + ... + 644049.

It is an arithmetic number, because the mean of its divisors is an integer number (4830195).

Almost surely, 2^30913224 is an apocalyptic number.

It is an amenable number.

30913224 is an abundant number, since it is smaller than the sum of its proper divisors (46369896).

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

30913224 is a wasteful number, since it uses less digits than its factorization.

30913224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288060 (or 1288056 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 30913224 is about 5559.9661869475. The cubic root of 30913224 is about 313.8446768555.

The spelling of 30913224 in words is "thirty million, nine hundred thirteen thousand, two hundred twenty-four".