12100404 has 24 divisors (see below), whose sum is σ = 28576800. Its totient is φ = 3984544.

The previous prime is 12100391. The next prime is 12100411. The reversal of 12100404 is 40400121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 12100404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5079 + ... + 7070.

It is an arithmetic number, because the mean of its divisors is an integer number (1190700).

Almost surely, 2^12100404 is an apocalyptic number.

It is an amenable number.

12100404 is an abundant number, since it is smaller than the sum of its proper divisors (16476396).

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

12100404 is a wasteful number, since it uses less digits than its factorization.

12100404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12239 (or 12237 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 12100404 is about 3478.5634966175. The cubic root of 12100404 is about 229.5795975104.

Adding to 12100404 its reverse (40400121), we get a palindrome (52500525).

The spelling of 12100404 in words is "twelve million, one hundred thousand, four hundred four".