30072164 has 6 divisors (see below), whose sum is σ = 52626294. Its totient is φ = 15036080.

The previous prime is 30072149. The next prime is 30072181. The reversal of 30072164 is 46127003.

It can be written as a sum of positive squares in only one way, i.e., 29702500 + 369664 = 5450^2 + 608^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3759017 + ... + 3759024.

It is an arithmetic number, because the mean of its divisors is an integer number (8771049).

Almost surely, 2^30072164 is an apocalyptic number.

It is an amenable number.

30072164 is a deficient number, since it is larger than the sum of its proper divisors (22554130).

30072164 is a wasteful number, since it uses less digits than its factorization.

30072164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7518045 (or 7518043 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 30072164 is about 5483.8092599944. The cubic root of 30072164 is about 310.9721958994.

Adding to 30072164 its reverse (46127003), we get a palindrome (76199167).

The spelling of 30072164 in words is "thirty million, seventy-two thousand, one hundred sixty-four".