18025488 has 60 divisors (see below), whose sum is σ = 54332460. Its totient is φ = 5545728.

The previous prime is 18025463. The next prime is 18025493. The reversal of 18025488 is 88452081.

It can be written as a sum of positive squares in 2 ways, for example, as 11614464 + 6411024 = 3408^2 + 2532^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2943 + ... + 6686.

It is an arithmetic number, because the mean of its divisors is an integer number (905541).

Almost surely, 2^18025488 is an apocalyptic number.

18025488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18025488 is an abundant number, since it is smaller than the sum of its proper divisors (36306972).

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

18025488 is a wasteful number, since it uses less digits than its factorization.

18025488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9656 (or 9647 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 18025488 is about 4245.6434141364. The cubic root of 18025488 is about 262.1977800747.

The spelling of 18025488 in words is "eighteen million, twenty-five thousand, four hundred eighty-eight".