104043440 has 40 divisors (see below), whose sum is σ = 249710208. Its totient is φ = 40273920.

The previous prime is 104043437. The next prime is 104043473. The reversal of 104043440 is 44340401.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18497 + ... + 23456.

Almost surely, 2^104043440 is an apocalyptic number.

104043440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104043440 is an abundant number, since it is smaller than the sum of its proper divisors (145666768).

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

104043440 is a wasteful number, since it uses less digits than its factorization.

104043440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41997 (or 41991 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 104043440 is about 10200.1686260571. The cubic root of 104043440 is about 470.3324040575.

Adding to 104043440 its reverse (44340401), we get a palindrome (148383841).

The spelling of 104043440 in words is "one hundred four million, forty-three thousand, four hundred forty".