12268428 has 24 divisors (see below), whose sum is σ = 28690032. Its totient is φ = 4080384.

The previous prime is 12268411. The next prime is 12268429. The reversal of 12268428 is 82486221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12268429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6576 + ... + 8232.

It is an arithmetic number, because the mean of its divisors is an integer number (1195418).

Almost surely, 2^12268428 is an apocalyptic number.

It is an amenable number.

12268428 is an abundant number, since it is smaller than the sum of its proper divisors (16421604).

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

12268428 is a wasteful number, since it uses less digits than its factorization.

12268428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281 (or 2279 counting only the distinct ones).

The product of its digits is 12288, while the sum is 33.

The square root of 12268428 is about 3502.6315821108. The cubic root of 12268428 is about 230.6373500485.

The spelling of 12268428 in words is "twelve million, two hundred sixty-eight thousand, four hundred twenty-eight".