39968024 has 8 divisors (see below), whose sum is σ = 74940060. Its totient is φ = 19984008.

The previous prime is 39968009. The next prime is 39968041. The reversal of 39968024 is 42086993.

39968024 = 1573² + 1574² + ... + 1588².

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2497994 + ... + 2498009.

Almost surely, 2^39968024 is an apocalyptic number.

It is an amenable number.

39968024 is a deficient number, since it is larger than the sum of its proper divisors (34972036).

39968024 is a wasteful number, since it uses less digits than its factorization.

39968024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4996009 (or 4996005 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 39968024 is about 6322.0268901674. The cubic root of 39968024 is about 341.9040347232.

The spelling of 39968024 in words is "thirty-nine million, nine hundred sixty-eight thousand, twenty-four".