30313732 has 12 divisors (see below), whose sum is σ = 53087580. Its totient is φ = 15145856.

The previous prime is 30313727. The next prime is 30313733. The reversal of 30313732 is 23731303.

It can be written as a sum of positive squares in 2 ways, for example, as 18369796 + 11943936 = 4286^2 + 3456^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30313733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9528 + ... + 12304.

It is an arithmetic number, because the mean of its divisors is an integer number (4423965).

Almost surely, 2^30313732 is an apocalyptic number.

It is an amenable number.

30313732 is a deficient number, since it is larger than the sum of its proper divisors (22773848).

30313732 is a wasteful number, since it uses less digits than its factorization.

30313732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5510 (or 5508 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 22.

The square root of 30313732 is about 5505.7907697260. The cubic root of 30313732 is about 311.8026502348.

The spelling of 30313732 in words is "thirty million, three hundred thirteen thousand, seven hundred thirty-two".