30648080 has 20 divisors (see below), whose sum is σ = 71256972. Its totient is φ = 12259200.

The previous prime is 30648067. The next prime is 30648091. The reversal of 30648080 is 8084603.

It can be written as a sum of positive squares in 2 ways, for example, as 11182336 + 19465744 = 3344^2 + 4412^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

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, 191471 + ... + 191630.

Almost surely, 2^30648080 is an apocalyptic number.

It is an amenable number.

30648080 is an abundant number, since it is smaller than the sum of its proper divisors (40608892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30648080 is a wasteful number, since it uses less digits than its factorization.

30648080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383114 (or 383108 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 30648080 is about 5536.0708087957. The cubic root of 30648080 is about 312.9448129522.

The spelling of 30648080 in words is "thirty million, six hundred forty-eight thousand, eighty".