30317472 has 36 divisors (see below), whose sum is σ = 86216130. Its totient is φ = 10105728.

The previous prime is 30317471. The next prime is 30317489. The reversal of 30317472 is 27471303.

It can be written as a sum of positive squares in only one way, i.e., 29550096 + 767376 = 5436^2 + 876^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (30317471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52347 + ... + 52922.

Almost surely, 2^30317472 is an apocalyptic number.

30317472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30317472 is an abundant number, since it is smaller than the sum of its proper divisors (55898658).

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

30317472 is a wasteful number, since it uses less digits than its factorization.

30317472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105285 (or 105274 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 30317472 is about 5506.1304016523. The cubic root of 30317472 is about 311.8154727400.

Adding to 30317472 its reverse (27471303), we get a palindrome (57788775).

The spelling of 30317472 in words is "thirty million, three hundred seventeen thousand, four hundred seventy-two".