39942894 has 32 divisors (see below), whose sum is σ = 85065120. Its totient is φ = 12460032.

The previous prime is 39942887. The next prime is 39942907. The reversal of 39942894 is 49824993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18672 + ... + 20700.

It is an arithmetic number, because the mean of its divisors is an integer number (2658285).

Almost surely, 2^39942894 is an apocalyptic number.

39942894 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

39942894 is an abundant number, since it is smaller than the sum of its proper divisors (45122226).

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

39942894 is a wasteful number, since it uses less digits than its factorization.

39942894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2244.

The product of its digits is 559872, while the sum is 48.

The square root of 39942894 is about 6320.0390821576. The cubic root of 39942894 is about 341.8323620132.

The spelling of 39942894 in words is "thirty-nine million, nine hundred forty-two thousand, eight hundred ninety-four".