30404648 has 8 divisors (see below), whose sum is σ = 57008730. Its totient is φ = 15202320.

The previous prime is 30404623. The next prime is 30404659. The reversal of 30404648 is 84640403.

It can be written as a sum of positive squares in only one way, i.e., 26234884 + 4169764 = 5122^2 + 2042^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 30404648.

It is an unprimeable number.

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, 1900283 + ... + 1900298.

Almost surely, 2^30404648 is an apocalyptic number.

It is an amenable number.

30404648 is a deficient number, since it is larger than the sum of its proper divisors (26604082).

30404648 is a wasteful number, since it uses less digits than its factorization.

30404648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3800587 (or 3800583 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 30404648 is about 5514.0409864273. The cubic root of 30404648 is about 312.1140553858.

The spelling of 30404648 in words is "thirty million, four hundred four thousand, six hundred forty-eight".