104640415 has 16 divisors (see below), whose sum is σ = 138529440. Its totient is φ = 75243520.

The previous prime is 104640397. The next prime is 104640421. The reversal of 104640415 is 514046401.

It is not a de Polignac number, because 104640415 - 2⁵ = 104640383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104640415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5794 + ... + 15583.

It is an arithmetic number, because the mean of its divisors is an integer number (8658090).

Almost surely, 2^104640415 is an apocalyptic number.

104640415 is a deficient number, since it is larger than the sum of its proper divisors (33889025).

104640415 is a wasteful number, since it uses less digits than its factorization.

104640415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21482.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 104640415 is about 10229.3897667456. The cubic root of 104640415 is about 471.2302386017.

Adding to 104640415 its reverse (514046401), we get a palindrome (618686816).

The spelling of 104640415 in words is "one hundred four million, six hundred forty thousand, four hundred fifteen".