12133404 has 18 divisors (see below), whose sum is σ = 30670640. Its totient is φ = 4044456.

The previous prime is 12133399. The next prime is 12133411. The reversal of 12133404 is 40433121.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 168484 + ... + 168555.

Almost surely, 2^12133404 is an apocalyptic number.

It is an amenable number.

12133404 is an abundant number, since it is smaller than the sum of its proper divisors (18537236).

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

12133404 is a wasteful number, since it uses less digits than its factorization.

12133404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337049 (or 337044 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 12133404 is about 3483.3036043388. The cubic root of 12133404 is about 229.7881098316.

Adding to 12133404 its reverse (40433121), we get a palindrome (52566525).

The spelling of 12133404 in words is "twelve million, one hundred thirty-three thousand, four hundred four".