30904368 has 120 divisors (see below), whose sum is σ = 93212784. Its totient is φ = 8785920.

The previous prime is 30904337. The next prime is 30904397. The reversal of 30904368 is 86340903.

It is a super-2 number, since 2×30904368² = 1910159922958848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98580 + ... + 98892.

Almost surely, 2^30904368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30904368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46606392).

30904368 is an abundant number, since it is smaller than the sum of its proper divisors (62308416).

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

30904368 is a wasteful number, since it uses less digits than its factorization.

30904368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 30904368 is about 5559.1697221797. The cubic root of 30904368 is about 313.8147039878.

The spelling of 30904368 in words is "thirty million, nine hundred four thousand, three hundred sixty-eight".