104581440 has 84 divisors (see below), whose sum is σ = 359726484. Its totient is φ = 27887616.

The previous prime is 104581429. The next prime is 104581469. The reversal of 104581440 is 44185401.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24443136 + 80138304 = 4944^2 + 8952^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15277 + ... + 21036.

Almost surely, 2^104581440 is an apocalyptic number.

104581440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104581440 is an abundant number, since it is smaller than the sum of its proper divisors (255145044).

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

104581440 is a wasteful number, since it uses less digits than its factorization.

104581440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36336 (or 36323 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 104581440 is about 10226.5067349511. The cubic root of 104581440 is about 471.1416940182.

The spelling of 104581440 in words is "one hundred four million, five hundred eighty-one thousand, four hundred forty".