104193440 has 48 divisors (see below), whose sum is σ = 265097448. Its totient is φ = 38470656.

The previous prime is 104193431. The next prime is 104193451. The reversal of 104193440 is 44391401.

It can be written as a sum of positive squares in 4 ways, for example, as 34904464 + 69288976 = 5908^2 + 8324^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22967 + ... + 27126.

Almost surely, 2^104193440 is an apocalyptic number.

104193440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104193440 is an abundant number, since it is smaller than the sum of its proper divisors (160904008).

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

104193440 is a wasteful number, since it uses less digits than its factorization.

104193440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50121 (or 50113 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 104193440 is about 10207.5187974355. The cubic root of 104193440 is about 470.5583224614.

The spelling of 104193440 in words is "one hundred four million, one hundred ninety-three thousand, four hundred forty".