30328372 has 6 divisors (see below), whose sum is σ = 53074658. Its totient is φ = 15164184.

The previous prime is 30328343. The next prime is 30328379. The reversal of 30328372 is 27382303.

It can be written as a sum of positive squares in only one way, i.e., 21123216 + 9205156 = 4596^2 + 3034^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30328372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30328379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3791043 + ... + 3791050.

Almost surely, 2^30328372 is an apocalyptic number.

It is an amenable number.

30328372 is a deficient number, since it is larger than the sum of its proper divisors (22746286).

30328372 is a wasteful number, since it uses less digits than its factorization.

30328372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7582097 (or 7582095 counting only the distinct ones).

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

The square root of 30328372 is about 5507.1201185375. The cubic root of 30328372 is about 311.8528371285.

The spelling of 30328372 in words is "thirty million, three hundred twenty-eight thousand, three hundred seventy-two".