104407840 has 24 divisors (see below), whose sum is σ = 246663900. Its totient is φ = 41763072.

The previous prime is 104407817. The next prime is 104407847. The reversal of 104407840 is 48704401.

It can be written as a sum of positive squares in 2 ways, for example, as 95335696 + 9072144 = 9764^2 + 3012^2 .

It is a junction number, because it is equal to n+sod(n) for n = 104407799 and 104407808.

It is not an unprimeable number, because it can be changed into a prime (104407847) 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, 326115 + ... + 326434.

Almost surely, 2^104407840 is an apocalyptic number.

104407840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104407840 is an abundant number, since it is smaller than the sum of its proper divisors (142256060).

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

104407840 is an equidigital number, since it uses as much as digits as its factorization.

104407840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652564 (or 652556 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 104407840 is about 10218.0154628969. The cubic root of 104407840 is about 470.8808590308.

The spelling of 104407840 in words is "one hundred four million, four hundred seven thousand, eight hundred forty".