30638652 has 36 divisors (see below), whose sum is σ = 78583848. Its totient is φ = 9284000.

The previous prime is 30638617. The next prime is 30638681. The reversal of 30638652 is 25683603.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9099 + ... + 12002.

Almost surely, 2^30638652 is an apocalyptic number.

It is an amenable number.

30638652 is an abundant number, since it is smaller than the sum of its proper divisors (47945196).

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

30638652 is a wasteful number, since it uses less digits than its factorization.

30638652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21130 (or 21117 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 30638652 is about 5535.2192368505. The cubic root of 30638652 is about 312.9127201720.

The spelling of 30638652 in words is "thirty million, six hundred thirty-eight thousand, six hundred fifty-two".