30704644 has 12 divisors (see below), whose sum is σ = 54337500. Its totient is φ = 15179648.

The previous prime is 30704621. The next prime is 30704657. The reversal of 30704644 is 44640703.

It can be written as a sum of positive squares in 2 ways, for example, as 20142144 + 10562500 = 4488^2 + 3250^2 .

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, 42769 + ... + 43480.

It is an arithmetic number, because the mean of its divisors is an integer number (4528125).

Almost surely, 2^30704644 is an apocalyptic number.

It is an amenable number.

30704644 is a deficient number, since it is larger than the sum of its proper divisors (23632856).

30704644 is a wasteful number, since it uses less digits than its factorization.

30704644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86342 (or 86340 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 30704644 is about 5541.1771312601. The cubic root of 30704644 is about 313.1372179540.

The spelling of 30704644 in words is "thirty million, seven hundred four thousand, six hundred forty-four".