30904272 has 240 divisors, whose sum is σ = 108945408. Its totient is φ = 7983360.

The previous prime is 30904267. The next prime is 30904301. The reversal of 30904272 is 27240903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 718683 + ... + 718725.

Almost surely, 2^30904272 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 30904272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54472704).

30904272 is an abundant number, since it is smaller than the sum of its proper divisors (78041136).

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

30904272 is a wasteful number, since it uses less digits than its factorization.

30904272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 30904272 is about 5559.1610877901. The cubic root of 30904272 is about 313.8143790473.

The spelling of 30904272 in words is "thirty million, nine hundred four thousand, two hundred seventy-two".