12028420 has 24 divisors (see below), whose sum is σ = 25458048. Its totient is φ = 4773600.

The previous prime is 12028409. The next prime is 12028421. The reversal of 12028420 is 2482021.

It is not an unprimeable number, because it can be changed into a prime (12028421) 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, 325 + ... + 4915.

It is an arithmetic number, because the mean of its divisors is an integer number (1060752).

Almost surely, 2^12028420 is an apocalyptic number.

12028420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12028420 is an abundant number, since it is smaller than the sum of its proper divisors (13429628).

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

12028420 is a wasteful number, since it uses less digits than its factorization.

12028420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4731 (or 4729 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 12028420 is about 3468.2012629027. The cubic root of 12028420 is about 229.1234436756.

The spelling of 12028420 in words is "twelve million, twenty-eight thousand, four hundred twenty".