30204880 has 20 divisors (see below), whose sum is σ = 70226532. Its totient is φ = 12081920.

The previous prime is 30204857. The next prime is 30204887. The reversal of 30204880 is 8840203.

It can be written as a sum of positive squares in 2 ways, for example, as 14807104 + 15397776 = 3848^2 + 3924^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30204887) 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 3 ways as a sum of consecutive naturals, for example, 188701 + ... + 188860.

Almost surely, 2^30204880 is an apocalyptic number.

It is an amenable number.

30204880 is an abundant number, since it is smaller than the sum of its proper divisors (40021652).

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

30204880 is a wasteful number, since it uses less digits than its factorization.

30204880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377574 (or 377568 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 30204880 is about 5495.8966511389. The cubic root of 30204880 is about 311.4289906648.

The spelling of 30204880 in words is "thirty million, two hundred four thousand, eight hundred eighty".