30240904 has 8 divisors (see below), whose sum is σ = 56701710. Its totient is φ = 15120448.

The previous prime is 30240893. The next prime is 30240923. The reversal of 30240904 is 40904203.

It can be written as a sum of positive squares in only one way, i.e., 29138404 + 1102500 = 5398^2 + 1050^2 .

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

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1890049 + ... + 1890064.

Almost surely, 2^30240904 is an apocalyptic number.

It is an amenable number.

30240904 is a deficient number, since it is larger than the sum of its proper divisors (26460806).

30240904 is a wasteful number, since it uses less digits than its factorization.

30240904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3780119 (or 3780115 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 30240904 is about 5499.1730287380. The cubic root of 30240904 is about 311.5527505872.

The spelling of 30240904 in words is "thirty million, two hundred forty thousand, nine hundred four".