30306472 has 32 divisors (see below), whose sum is σ = 65214720. Its totient is φ = 12934080.

The previous prime is 30306467. The next prime is 30306511. The reversal of 30306472 is 27460303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14178 + ... + 16174.

It is an arithmetic number, because the mean of its divisors is an integer number (2037960).

Almost surely, 2^30306472 is an apocalyptic number.

It is an amenable number.

30306472 is an abundant number, since it is smaller than the sum of its proper divisors (34908248).

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

30306472 is a wasteful number, since it uses less digits than its factorization.

30306472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281 (or 2277 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 30306472 is about 5505.1314244076. The cubic root of 30306472 is about 311.7777564784. Note that the first 4 decimals are identical.

Adding to 30306472 its reverse (27460303), we get a palindrome (57766775).

The spelling of 30306472 in words is "thirty million, three hundred six thousand, four hundred seventy-two".