104704640 has 32 divisors (see below), whose sum is σ = 250311060. Its totient is φ = 41881600.

The previous prime is 104704631. The next prime is 104704643. The reversal of 104704640 is 46407401.

It can be written as a sum of positive squares in 2 ways, for example, as 104693824 + 10816 = 10232^2 + 104^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (104704643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81161 + ... + 82440.

Almost surely, 2^104704640 is an apocalyptic number.

104704640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104704640 is an abundant number, since it is smaller than the sum of its proper divisors (145606420).

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

104704640 is an equidigital number, since it uses as much as digits as its factorization.

104704640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163620 (or 163608 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 104704640 is about 10232.5285242700. The cubic root of 104704640 is about 471.3266276573.

The spelling of 104704640 in words is "one hundred four million, seven hundred four thousand, six hundred forty".