39947034 has 32 divisors (see below), whose sum is σ = 82865664. Its totient is φ = 12824640.

The previous prime is 39946981. The next prime is 39947051. The reversal of 39947034 is 43074993.

It is a junction number, because it is equal to n+sod(n) for n = 39946983 and 39947001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54132 + ... + 54864.

It is an arithmetic number, because the mean of its divisors is an integer number (2589552).

Almost surely, 2^39947034 is an apocalyptic number.

39947034 is an abundant number, since it is smaller than the sum of its proper divisors (42918630).

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

39947034 is a wasteful number, since it uses less digits than its factorization.

39947034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062.

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

The square root of 39947034 is about 6320.3666032913. The cubic root of 39947034 is about 341.8441716824.

The spelling of 39947034 in words is "thirty-nine million, nine hundred forty-seven thousand, thirty-four".