39890048 has 64 divisors (see below), whose sum is σ = 88935840. Its totient is φ = 17664000.

The previous prime is 39890021. The next prime is 39890069. The reversal of 39890048 is 84009893.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a junction number, because it is equal to n+sod(n) for n = 39889987 and 39890014.

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, 57383 + ... + 58073.

Almost surely, 2^39890048 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 39890048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44467920).

39890048 is an abundant number, since it is smaller than the sum of its proper divisors (49045792).

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

39890048 is a wasteful number, since it uses less digits than its factorization.

39890048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757 (or 745 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 39890048 is about 6315.8568698158. The cubic root of 39890048 is about 341.6815429837.

The spelling of 39890048 in words is "thirty-nine million, eight hundred ninety thousand, forty-eight".