39299904 has 252 divisors, whose sum is σ = 140902944. Its totient is φ = 10637568.

The previous prime is 39299899. The next prime is 39299917. The reversal of 39299904 is 40999293.

It is a tau number, because it is divible by the number of its divisors (252).

It is a self number, because there is not a number n which added to its sum of digits gives 39299904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2068407 + ... + 2068425.

Almost surely, 2^39299904 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 39299904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70451472).

39299904 is an abundant number, since it is smaller than the sum of its proper divisors (101603040).

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

39299904 is an equidigital number, since it uses as much as digits as its factorization.

39299904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72 (or 31 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The square root of 39299904 is about 6268.9635506996. The cubic root of 39299904 is about 339.9881887477.

The spelling of 39299904 in words is "thirty-nine million, two hundred ninety-nine thousand, nine hundred four".