104336640 has 144 divisors (see below), whose sum is σ = 370372800. Its totient is φ = 27813888.

The previous prime is 104336611. The next prime is 104336641. The reversal of 104336640 is 46633401.

104336640 is a `hidden beast` number, since 10 + 4 + 3 + 3 + 6 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×104336640² = 21772268892979200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104336641) 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, 33051 + ... + 36069.

Almost surely, 2^104336640 is an apocalyptic number.

104336640 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 104336640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185186400).

104336640 is an abundant number, since it is smaller than the sum of its proper divisors (266036160).

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

104336640 is an equidigital number, since it uses as much as digits as its factorization.

104336640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3049 (or 3029 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 104336640 is about 10214.5308262299. The cubic root of 104336640 is about 470.7737970160.

It can be divided in two parts, 104336 and 640, that added together give a 4-th power (104976 = 18⁴).

The spelling of 104336640 in words is "one hundred four million, three hundred thirty-six thousand, six hundred forty".