104244640 has 96 divisors (see below), whose sum is σ = 264539520. Its totient is φ = 38697984.

The previous prime is 104244631. The next prime is 104244641. The reversal of 104244640 is 46442401.

It is not an unprimeable number, because it can be changed into a prime (104244641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160797 + ... + 161443.

It is an arithmetic number, because the mean of its divisors is an integer number (2755620).

Almost surely, 2^104244640 is an apocalyptic number.

104244640 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 104244640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132269760).

104244640 is an abundant number, since it is smaller than the sum of its proper divisors (160294880).

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

104244640 is a wasteful number, since it uses less digits than its factorization.

104244640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734 (or 726 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 104244640 is about 10210.0264446278. The cubic root of 104244640 is about 470.6353863049.

The spelling of 104244640 in words is "one hundred four million, two hundred forty-four thousand, six hundred forty".