30298972 has 24 divisors (see below), whose sum is σ = 58181760. Its totient is φ = 13691760.

The previous prime is 30298951. The next prime is 30298979. The reversal of 30298972 is 27989203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30298979) 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, 5953 + ... + 9799.

It is an arithmetic number, because the mean of its divisors is an integer number (2424240).

Almost surely, 2^30298972 is an apocalyptic number.

It is an amenable number.

30298972 is a deficient number, since it is larger than the sum of its proper divisors (27882788).

30298972 is a wasteful number, since it uses less digits than its factorization.

30298972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4041 (or 4039 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 30298972 is about 5504.4501996112. The cubic root of 30298972 is about 311.7520356127.

The spelling of 30298972 in words is "thirty million, two hundred ninety-eight thousand, nine hundred seventy-two".