18822912 has 36 divisors (see below), whose sum is σ = 50098440. Its totient is φ = 6274048.

The previous prime is 18822907. The next prime is 18822917. The reversal of 18822912 is 21922881.

It is an interprime number because it is at equal distance from previous prime (18822907) and next prime (18822917).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18822917) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11487 + ... + 13022.

Almost surely, 2^18822912 is an apocalyptic number.

18822912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18822912 is an abundant number, since it is smaller than the sum of its proper divisors (31275528).

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

18822912 is an equidigital number, since it uses as much as digits as its factorization.

18822912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24528 (or 24514 counting only the distinct ones).

The product of its digits is 4608, while the sum is 33.

The square root of 18822912 is about 4338.5380025995. The cubic root of 18822912 is about 266.0085549475.

The spelling of 18822912 in words is "eighteen million, eight hundred twenty-two thousand, nine hundred twelve".