104040640 has 84 divisors (see below), whose sum is σ = 272418048. Its totient is φ = 37818880.

The previous prime is 104040623. The next prime is 104040647. The reversal of 104040640 is 46040401.

It is not an unprimeable number, because it can be changed into a prime (104040647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37377 + ... + 40063.

It is an arithmetic number, because the mean of its divisors is an integer number (3243072).

Almost surely, 2^104040640 is an apocalyptic number.

104040640 is a gapful number since it is divisible by the number (10) 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 104040640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136209024).

104040640 is an abundant number, since it is smaller than the sum of its proper divisors (168377408).

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

104040640 is a wasteful number, since it uses less digits than its factorization.

104040640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2726 (or 2705 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 104040640 is about 10200.0313725008. The cubic root of 104040640 is about 470.3281848501.

It can be divided in two parts, 104040 and 640, that multiplied together give a square (66585600 = 8160²).

The spelling of 104040640 in words is "one hundred four million, forty thousand, six hundred forty".