12028404 has 24 divisors (see below), whose sum is σ = 28825888. Its totient is φ = 3900960.

The previous prime is 12028399. The next prime is 12028409. The reversal of 12028404 is 40482021.

It is an interprime number because it is at equal distance from previous prime (12028399) and next prime (12028409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12028409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13102 + ... + 13989.

Almost surely, 2^12028404 is an apocalyptic number.

It is an amenable number.

12028404 is an abundant number, since it is smaller than the sum of its proper divisors (16797484).

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

12028404 is a wasteful number, since it uses less digits than its factorization.

12028404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27135 (or 27133 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 12028404 is about 3468.1989562307. The cubic root of 12028404 is about 229.1233420835.

The spelling of 12028404 in words is "twelve million, twenty-eight thousand, four hundred four".