39242904 has 64 divisors (see below), whose sum is σ = 105840000. Its totient is φ = 12084480.

The previous prime is 39242893. The next prime is 39242921. The reversal of 39242904 is 40924293.

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, 17647 + ... + 19745.

It is an arithmetic number, because the mean of its divisors is an integer number (1653750).

Almost surely, 2^39242904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39242904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52920000).

39242904 is an abundant number, since it is smaller than the sum of its proper divisors (66597096).

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

39242904 is a wasteful number, since it uses less digits than its factorization.

39242904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168 (or 2164 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 39242904 is about 6264.4156950190. The cubic root of 39242904 is about 339.8237379348.

The spelling of 39242904 in words is "thirty-nine million, two hundred forty-two thousand, nine hundred four".