30427172 has 12 divisors (see below), whose sum is σ = 54686940. Its totient is φ = 14802336.

The previous prime is 30427169. The next prime is 30427181. The reversal of 30427172 is 27172403.

It can be written as a sum of positive squares in 2 ways, for example, as 22886656 + 7540516 = 4784^2 + 2746^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102647 + ... + 102942.

It is an arithmetic number, because the mean of its divisors is an integer number (4557245).

Almost surely, 2^30427172 is an apocalyptic number.

It is an amenable number.

30427172 is a deficient number, since it is larger than the sum of its proper divisors (24259768).

30427172 is a wasteful number, since it uses less digits than its factorization.

30427172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205630 (or 205628 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 30427172 is about 5516.0830305571. The cubic root of 30427172 is about 312.1911085360.

Adding to 30427172 its reverse (27172403), we get a palindrome (57599575).

The spelling of 30427172 in words is "thirty million, four hundred twenty-seven thousand, one hundred seventy-two".