18426912 has 96 divisors (see below), whose sum is σ = 58568832. Its totient is φ = 4952064.

The previous prime is 18426907. The next prime is 18426931. The reversal of 18426912 is 21962481.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10618 + ... + 12230.

It is an arithmetic number, because the mean of its divisors is an integer number (610092).

Almost surely, 2^18426912 is an apocalyptic number.

18426912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18426912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29284416).

18426912 is an abundant number, since it is smaller than the sum of its proper divisors (40141920).

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

18426912 is a wasteful number, since it uses less digits than its factorization.

18426912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650 (or 1642 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 18426912 is about 4292.6579178872. The cubic root of 18426912 is about 264.1298718214.

The spelling of 18426912 in words is "eighteen million, four hundred twenty-six thousand, nine hundred twelve".