18449088 has 168 divisors, whose sum is σ = 59417712. Its totient is φ = 5031936.

The previous prime is 18449069. The next prime is 18449089. The reversal of 18449088 is 88094481.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (18449089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 348070 + ... + 348122.

Almost surely, 2^18449088 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 18449088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29708856).

18449088 is an abundant number, since it is smaller than the sum of its proper divisors (40968624).

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

18449088 is a wasteful number, since it uses less digits than its factorization.

18449088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 18449088 is about 4295.2401562660. The cubic root of 18449088 is about 264.2357856775.

The spelling of 18449088 in words is "eighteen million, four hundred forty-nine thousand, eighty-eight".