30504768 has 56 divisors (see below), whose sum is σ = 92244672. Its totient is φ = 8715264.

The previous prime is 30504763. The next prime is 30504769. The reversal of 30504768 is 86740503.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30504763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10005 + ... + 12692.

Almost surely, 2^30504768 is an apocalyptic number.

It is an amenable number.

30504768 is an abundant number, since it is smaller than the sum of its proper divisors (61739904).

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

30504768 is a wasteful number, since it uses less digits than its factorization.

30504768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22719 (or 22709 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 30504768 is about 5523.1121661614. The cubic root of 30504768 is about 312.4562686538.

The spelling of 30504768 in words is "thirty million, five hundred four thousand, seven hundred sixty-eight".