39939402 has 16 divisors (see below), whose sum is σ = 80016480. Its totient is φ = 13290192.

The previous prime is 39939397. The next prime is 39939407. The reversal of 39939402 is 20493993.

It is an interprime number because it is at equal distance from previous prime (39939397) and next prime (39939407).

It is not an unprimeable number, because it can be changed into a prime (39939407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1752 + ... + 9107.

It is an arithmetic number, because the mean of its divisors is an integer number (5001030).

Almost surely, 2^39939402 is an apocalyptic number.

39939402 is an abundant number, since it is smaller than the sum of its proper divisors (40077078).

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

39939402 is a wasteful number, since it uses less digits than its factorization.

39939402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11477.

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 39939402 is about 6319.7628120049. The cubic root of 39939402 is about 341.8224001796.

The spelling of 39939402 in words is "thirty-nine million, nine hundred thirty-nine thousand, four hundred two".