12228490 has 16 divisors (see below), whose sum is σ = 22112352. Its totient is φ = 4868944.

The previous prime is 12228481. The next prime is 12228493. The reversal of 12228490 is 9482221.

It is not an unprimeable number, because it can be changed into a prime (12228493) 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, 424 + ... + 4963.

It is an arithmetic number, because the mean of its divisors is an integer number (1382022).

Almost surely, 2^12228490 is an apocalyptic number.

12228490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12228490 is a deficient number, since it is larger than the sum of its proper divisors (9883862).

12228490 is a wasteful number, since it uses less digits than its factorization.

12228490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5621.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 12228490 is about 3496.9257927500. The cubic root of 12228490 is about 230.3868097234.

The spelling of 12228490 in words is "twelve million, two hundred twenty-eight thousand, four hundred ninety".