40039080 has 128 divisors (see below), whose sum is σ = 134006400. Its totient is φ = 9510912.

The previous prime is 40039049. The next prime is 40039093. The reversal of 40039080 is 8093004.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 40039080.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38244 + ... + 39276.

It is an arithmetic number, because the mean of its divisors is an integer number (1046925).

Almost surely, 2^40039080 is an apocalyptic number.

40039080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40039080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67003200).

40039080 is an abundant number, since it is smaller than the sum of its proper divisors (93967320).

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

40039080 is a wasteful number, since it uses less digits than its factorization.

40039080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083 (or 1079 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 40039080 is about 6327.6441113577. The cubic root of 40039080 is about 342.1065295167.

The spelling of 40039080 in words is "forty million, thirty-nine thousand, eighty".