39894424 has 16 divisors (see below), whose sum is σ = 75465720. Its totient is φ = 19770240.

The previous prime is 39894419. The next prime is 39894467. The reversal of 39894424 is 42449893.

It is a congruent number.

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, 21162 + ... + 22969.

Almost surely, 2^39894424 is an apocalyptic number.

It is an amenable number.

39894424 is a deficient number, since it is larger than the sum of its proper divisors (35571296).

39894424 is a wasteful number, since it uses less digits than its factorization.

39894424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44250 (or 44246 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The square root of 39894424 is about 6316.2032899520. The cubic root of 39894424 is about 341.6940368582.

The spelling of 39894424 in words is "thirty-nine million, eight hundred ninety-four thousand, four hundred twenty-four".