30471772 has 12 divisors (see below), whose sum is σ = 53378416. Its totient is φ = 15220800.

The previous prime is 30471761. The next prime is 30471809. The reversal of 30471772 is 27717403.

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, 1633 + ... + 7975.

Almost surely, 2^30471772 is an apocalyptic number.

It is an amenable number.

30471772 is a deficient number, since it is larger than the sum of its proper divisors (22906644).

30471772 is a wasteful number, since it uses less digits than its factorization.

30471772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7548 (or 7546 counting only the distinct ones).

The product of its (nonzero) digits is 8232, while the sum is 31.

The square root of 30471772 is about 5520.1242739634. The cubic root of 30471772 is about 312.3435701348.

The spelling of 30471772 in words is "thirty million, four hundred seventy-one thousand, seven hundred seventy-two".