40439272 has 16 divisors (see below), whose sum is σ = 76097700. Its totient is φ = 20146560.

The previous prime is 40439219. The next prime is 40439281. The reversal of 40439272 is 27293404.

It can be written as a sum of positive squares in 2 ways, for example, as 38266596 + 2172676 = 6186^2 + 1474^2 .

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, 6747 + ... + 11242.

Almost surely, 2^40439272 is an apocalyptic number.

It is an amenable number.

40439272 is a deficient number, since it is larger than the sum of its proper divisors (35658428).

40439272 is a wasteful number, since it uses less digits than its factorization.

40439272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18276 (or 18272 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 40439272 is about 6359.1879984791. The cubic root of 40439272 is about 343.2425419487.

The spelling of 40439272 in words is "forty million, four hundred thirty-nine thousand, two hundred seventy-two".