104045640 has 64 divisors (see below), whose sum is σ = 316820160. Its totient is φ = 27329280.

The previous prime is 104045621. The next prime is 104045651. The reversal of 104045640 is 46540401.

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 104045640.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1570 + ... + 14510.

It is an arithmetic number, because the mean of its divisors is an integer number (4950315).

Almost surely, 2^104045640 is an apocalyptic number.

104045640 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 104045640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158410080).

104045640 is an abundant number, since it is smaller than the sum of its proper divisors (212774520).

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

104045640 is a wasteful number, since it uses less digits than its factorization.

104045640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13022 (or 13018 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 104045640 is about 10200.2764668415. The cubic root of 104045640 is about 470.3357190959.

The spelling of 104045640 in words is "one hundred four million, forty-five thousand, six hundred forty".