30312664 has 16 divisors (see below), whose sum is σ = 57045600. Its totient is φ = 15100512.

The previous prime is 30312647. The next prime is 30312673. The reversal of 30312664 is 46621303.

It is a congruent number.

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, 4624 + ... + 9055.

It is an arithmetic number, because the mean of its divisors is an integer number (3565350).

Almost surely, 2^30312664 is an apocalyptic number.

It is an amenable number.

30312664 is a deficient number, since it is larger than the sum of its proper divisors (26732936).

30312664 is a wasteful number, since it uses less digits than its factorization.

30312664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13962 (or 13958 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 30312664 is about 5505.6937800789. The cubic root of 30312664 is about 311.7989884274.

Adding to 30312664 its reverse (46621303), we get a palindrome (76933967).

It can be divided in two parts, 30312 and 664, that added together give a square (30976 = 176²).

The spelling of 30312664 in words is "thirty million, three hundred twelve thousand, six hundred sixty-four".