104400491 has 8 divisors (see below), whose sum is σ = 113524320. Its totient is φ = 95432832.

The previous prime is 104400487. The next prime is 104400503. The reversal of 104400491 is 194004401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 104400491 - 2² = 104400487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104450491) by changing a digit.

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, 37646 + ... + 40323.

It is an arithmetic number, because the mean of its divisors is an integer number (14190540).

Almost surely, 2^104400491 is an apocalyptic number.

104400491 is a deficient number, since it is larger than the sum of its proper divisors (9123829).

104400491 is a wasteful number, since it uses less digits than its factorization.

104400491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78085.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 104400491 is about 10217.6558466216. The cubic root of 104400491 is about 470.8698107397.

Adding to 104400491 its reverse (194004401), we get a palindrome (298404892).

The spelling of 104400491 in words is "one hundred four million, four hundred thousand, four hundred ninety-one".