30954972 has 12 divisors (see below), whose sum is σ = 72228296. Its totient is φ = 10318320.

The previous prime is 30954961. The next prime is 30954991. The reversal of 30954972 is 27945903.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 30954972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1289779 + ... + 1289802.

Almost surely, 2^30954972 is an apocalyptic number.

It is an amenable number.

30954972 is an abundant number, since it is smaller than the sum of its proper divisors (41273324).

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

30954972 is a wasteful number, since it uses less digits than its factorization.

30954972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2579588 (or 2579586 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 30954972 is about 5563.7192596320. The cubic root of 30954972 is about 313.9858946698.

The spelling of 30954972 in words is "thirty million, nine hundred fifty-four thousand, nine hundred seventy-two".