18401088 has 56 divisors (see below), whose sum is σ = 49011840. Its totient is φ = 6092800.

The previous prime is 18401083. The next prime is 18401093. The reversal of 18401088 is 88010481.

It is an interprime number because it is at equal distance from previous prime (18401083) and next prime (18401093).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18401083) 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, 45688 + ... + 46088.

Almost surely, 2^18401088 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 18401088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24505920).

18401088 is an abundant number, since it is smaller than the sum of its proper divisors (30610752).

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

18401088 is a wasteful number, since it uses less digits than its factorization.

18401088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 30.

The square root of 18401088 is about 4289.6489366847. The cubic root of 18401088 is about 264.0064277590.

The spelling of 18401088 in words is "eighteen million, four hundred one thousand, eighty-eight".