39944704 has 20 divisors (see below), whose sum is σ = 79812414. Its totient is φ = 19972096.

The previous prime is 39944659. The next prime is 39944717. The reversal of 39944704 is 40744993.

It can be written as a sum of positive squares in only one way, i.e., 39942400 + 2304 = 6320^2 + 48^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38497 + ... + 39520.

Almost surely, 2^39944704 is an apocalyptic number.

It is an amenable number.

39944704 is a deficient number, since it is larger than the sum of its proper divisors (39867710).

39944704 is an frugal number, since it uses more digits than its factorization.

39944704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78035 (or 78019 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 39944704 is about 6320.1822758525. The cubic root of 39944704 is about 341.8375252782.

The spelling of 39944704 in words is "thirty-nine million, nine hundred forty-four thousand, seven hundred four".