30404972 has 24 divisors (see below), whose sum is σ = 58854096. Its totient is φ = 13652928.

The previous prime is 30404971. The next prime is 30404977. The reversal of 30404972 is 27940403.

It is not an unprimeable number, because it can be changed into a prime (30404971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5978 + ... + 9825.

It is an arithmetic number, because the mean of its divisors is an integer number (2452254).

Almost surely, 2^30404972 is an apocalyptic number.

It is an amenable number.

30404972 is a deficient number, since it is larger than the sum of its proper divisors (28449124).

30404972 is a wasteful number, since it uses less digits than its factorization.

30404972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15857 (or 15855 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 30404972 is about 5514.0703658912. The cubic root of 30404972 is about 312.1151640386.

The spelling of 30404972 in words is "thirty million, four hundred four thousand, nine hundred seventy-two".