12142404 has 36 divisors (see below), whose sum is σ = 30816240. Its totient is φ = 4031280.

The previous prime is 12142399. The next prime is 12142411. The reversal of 12142404 is 40424121.

It is a tau number, because it is divible by the number of its divisors (36).

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

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 11 ways as a sum of consecutive naturals, for example, 11407 + ... + 12425.

Almost surely, 2^12142404 is an apocalyptic number.

It is an amenable number.

12142404 is an abundant number, since it is smaller than the sum of its proper divisors (18673836).

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

12142404 is a wasteful number, since it uses less digits than its factorization.

12142404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360 (or 1355 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 12142404 is about 3484.5952419183. The cubic root of 12142404 is about 229.8449112003.

Adding to 12142404 its reverse (40424121), we get a palindrome (52566525).

The spelling of 12142404 in words is "twelve million, one hundred forty-two thousand, four hundred four".