30072664 has 16 divisors (see below), whose sum is σ = 56905200. Its totient is φ = 14897952.

The previous prime is 30072631. The next prime is 30072667. The reversal of 30072664 is 46627003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30072667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16372 + ... + 18115.

It is an arithmetic number, because the mean of its divisors is an integer number (3556575).

Almost surely, 2^30072664 is an apocalyptic number.

It is an amenable number.

30072664 is a deficient number, since it is larger than the sum of its proper divisors (26832536).

30072664 is a wasteful number, since it uses less digits than its factorization.

30072664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34602 (or 34598 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 30072664 is about 5483.8548485532. The cubic root of 30072664 is about 310.9739193674.

Adding to 30072664 its reverse (46627003), we get a palindrome (76699667).

It can be divided in two parts, 3007 and 2664, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 30072664 in words is "thirty million, seventy-two thousand, six hundred sixty-four".