39648408 has 64 divisors (see below), whose sum is σ = 102685440. Its totient is φ = 12749184.

The previous prime is 39648397. The next prime is 39648431. The reversal of 39648408 is 80484693.

It is a self number, because there is not a number n which added to its sum of digits gives 39648408.

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, 106110 + ... + 106482.

It is an arithmetic number, because the mean of its divisors is an integer number (1604460).

Almost surely, 2^39648408 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 39648408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51342720).

39648408 is an abundant number, since it is smaller than the sum of its proper divisors (63037032).

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

39648408 is a wasteful number, since it uses less digits than its factorization.

39648408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 39648408 is about 6296.6981823810. The cubic root of 39648408 is about 340.9902159484.

The spelling of 39648408 in words is "thirty-nine million, six hundred forty-eight thousand, four hundred eight".