39444075 has 36 divisors (see below), whose sum is σ = 77076168. Its totient is φ = 19123200.

The previous prime is 39444073. The next prime is 39444079. The reversal of 39444075 is 57044493.

It is not a de Polignac number, because 39444075 - 2¹ = 39444073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39444073) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5494 + ... + 10443.

Almost surely, 2^39444075 is an apocalyptic number.

39444075 is a deficient number, since it is larger than the sum of its proper divisors (37632093).

39444075 is a wasteful number, since it uses less digits than its factorization.

39444075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15964 (or 15956 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 39444075 is about 6280.4518149573. The cubic root of 39444075 is about 340.4034282724.

The spelling of 39444075 in words is "thirty-nine million, four hundred forty-four thousand, seventy-five".