104400015 has 8 divisors (see below), whose sum is σ = 167040048. Its totient is φ = 55680000.

The previous prime is 104400011. The next prime is 104400017. The reversal of 104400015 is 510004401.

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

It is not a de Polignac number, because 104400015 - 2² = 104400011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 6960001 = 104400015 / (1 + 0 + 4 + 4 + 0 + 0 + 0 + 1 + 5).

It is a junction number, because it is equal to n+sod(n) for n = 104399967 and 104400003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104400011) 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, 3479986 + ... + 3480015.

It is an arithmetic number, because the mean of its divisors is an integer number (20880006).

Almost surely, 2^104400015 is an apocalyptic number.

104400015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

104400015 is a deficient number, since it is larger than the sum of its proper divisors (62640033).

104400015 is an equidigital number, since it uses as much as digits as its factorization.

104400015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6960009.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 104400015 is about 10217.6325535811. The cubic root of 104400015 is about 470.8690951161.

Adding to 104400015 its reverse (510004401), we get a palindrome (614404416).

The spelling of 104400015 in words is "one hundred four million, four hundred thousand, fifteen".