39000080 has 60 divisors (see below), whose sum is σ = 105489900. Its totient is φ = 13370112.

The previous prime is 39000079. The next prime is 39000107. The reversal of 39000080 is 8000093.

It can be written as a sum of positive squares in 2 ways, for example, as 14714896 + 24285184 = 3836^2 + 4928^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1055 + ... + 8894.

It is an arithmetic number, because the mean of its divisors is an integer number (1758165).

Almost surely, 2^39000080 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 39000080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52744950).

39000080 is an abundant number, since it is smaller than the sum of its proper divisors (66489820).

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

39000080 is a wasteful number, since it uses less digits than its factorization.

39000080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9976 (or 9963 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 39000080 is about 6245.0044035213. The cubic root of 39000080 is about 339.1213761790.

The spelling of 39000080 in words is "thirty-nine million, eighty", and thus it is an aban number and an uban number.