104402440 has 32 divisors (see below), whose sum is σ = 248725080. Its totient is φ = 39304192.

The previous prime is 104402437. The next prime is 104402443. The reversal of 104402440 is 44204401.

It is an interprime number because it is at equal distance from previous prime (104402437) and next prime (104402443).

It can be written as a sum of positive squares in 4 ways, for example, as 88096996 + 16305444 = 9386^2 + 4038^2 .

It is not an unprimeable number, because it can be changed into a prime (104402443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76087 + ... + 77446.

Almost surely, 2^104402440 is an apocalyptic number.

104402440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104402440 is an abundant number, since it is smaller than the sum of its proper divisors (144322640).

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

104402440 is a wasteful number, since it uses less digits than its factorization.

104402440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153561 (or 153557 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 104402440 is about 10217.7512203028. The cubic root of 104402440 is about 470.8727408650.

Adding to 104402440 its reverse (44204401), we get a palindrome (148606841).

It can be divided in two parts, 10440 and 2440, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 104402440 in words is "one hundred four million, four hundred two thousand, four hundred forty".