18426048 has 56 divisors (see below), whose sum is σ = 51328320. Its totient is φ = 5817600.

The previous prime is 18426041. The next prime is 18426053. The reversal of 18426048 is 84062481.

It is not an unprimeable number, because it can be changed into a prime (18426041) 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, 1123 + ... + 6173.

Almost surely, 2^18426048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18426048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25664160).

18426048 is an abundant number, since it is smaller than the sum of its proper divisors (32902272).

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

18426048 is a wasteful number, since it uses less digits than its factorization.

18426048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5085 (or 5075 counting only the distinct ones).

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

The square root of 18426048 is about 4292.5572797576. The cubic root of 18426048 is about 264.1257435881.

The spelling of 18426048 in words is "eighteen million, four hundred twenty-six thousand, forty-eight".