104909405 has 16 divisors (see below), whose sum is σ = 128991744. Its totient is φ = 81872640.

The previous prime is 104909369. The next prime is 104909437. The reversal of 104909405 is 504909401.

It is not a de Polignac number, because 104909405 - 2⁶ = 104909341 is a prime.

It is a super-2 number, since 2×104909405² = 22011966514908050, which contains 22 as substring.

It is a Duffinian number.

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, 101240 + ... + 102270.

It is an arithmetic number, because the mean of its divisors is an integer number (8061984).

Almost surely, 2^104909405 is an apocalyptic number.

It is an amenable number.

104909405 is a deficient number, since it is larger than the sum of its proper divisors (24082339).

104909405 is a wasteful number, since it uses less digits than its factorization.

104909405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 104909405 is about 10242.5292286622. The cubic root of 104909405 is about 471.6336766137.

The spelling of 104909405 in words is "one hundred four million, nine hundred nine thousand, four hundred five".