30404644 has 12 divisors (see below), whose sum is σ = 55043100. Its totient is φ = 14678048.

The previous prime is 30404623. The next prime is 30404659. The reversal of 30404644 is 44640403.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15116544 + 15288100 = 3888^2 + 3910^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 130939 + ... + 131170.

It is an arithmetic number, because the mean of its divisors is an integer number (4586925).

Almost surely, 2^30404644 is an apocalyptic number.

It is an amenable number.

30404644 is a deficient number, since it is larger than the sum of its proper divisors (24638456).

30404644 is a wasteful number, since it uses less digits than its factorization.

30404644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262142 (or 262140 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 30404644 is about 5514.0406237169. The cubic root of 30404644 is about 312.1140416987.

The spelling of 30404644 in words is "thirty million, four hundred four thousand, six hundred forty-four".