39943074 has 8 divisors (see below), whose sum is σ = 79886160. Its totient is φ = 13314356.

The previous prime is 39943069. The next prime is 39943133. The reversal of 39943074 is 47034993.

39943074 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

39943074 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3328584 + ... + 3328595.

It is an arithmetic number, because the mean of its divisors is an integer number (9985770).

Almost surely, 2^39943074 is an apocalyptic number.

39943074 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39943074 is a wasteful number, since it uses less digits than its factorization.

39943074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6657184.

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 39943074 is about 6320.0533225599. The cubic root of 39943074 is about 341.8328754941.

The spelling of 39943074 in words is "thirty-nine million, nine hundred forty-three thousand, seventy-four".