39104720 has 40 divisors (see below), whose sum is σ = 91494144. Its totient is φ = 15542912.

The previous prime is 39104719. The next prime is 39104749. The reversal of 39104720 is 2740193.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 39104720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11897 + ... + 14823.

Almost surely, 2^39104720 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 39104720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45747072).

39104720 is an abundant number, since it is smaller than the sum of its proper divisors (52389424).

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

39104720 is a wasteful number, since it uses less digits than its factorization.

39104720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3107 (or 3101 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 39104720 is about 6253.3766878383. The cubic root of 39104720 is about 339.4244009520.

The spelling of 39104720 in words is "thirty-nine million, one hundred four thousand, seven hundred twenty".