30394971 has 12 divisors (see below), whose sum is σ = 44648760. Its totient is φ = 19919520.

The previous prime is 30394951. The next prime is 30394979. The reversal of 30394971 is 17949303.

It is not a de Polignac number, because 30394971 - 2⁶ = 30394907 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (30394979) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28090 + ... + 29151.

It is an arithmetic number, because the mean of its divisors is an integer number (3720730).

Almost surely, 2^30394971 is an apocalyptic number.

30394971 is a deficient number, since it is larger than the sum of its proper divisors (14253789).

30394971 is a wasteful number, since it uses less digits than its factorization.

30394971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57306 (or 57303 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 30394971 is about 5513.1634294659. The cubic root of 30394971 is about 312.0809393066.

The spelling of 30394971 in words is "thirty million, three hundred ninety-four thousand, nine hundred seventy-one".