18250560 has 84 divisors (see below), whose sum is σ = 62784228. Its totient is φ = 4866048.

The previous prime is 18250559. The next prime is 18250577. The reversal of 18250560 is 6505281.

It can be written as a sum of positive squares in 2 ways, for example, as 6471936 + 11778624 = 2544^2 + 3432^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 289 + ... + 6048.

Almost surely, 2^18250560 is an apocalyptic number.

18250560 is a gapful number since it is divisible by the number (10) 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 18250560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31392114).

18250560 is an abundant number, since it is smaller than the sum of its proper divisors (44533668).

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

18250560 is a wasteful number, since it uses less digits than its factorization.

18250560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6360 (or 6347 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 18250560 is about 4272.0674151984. The cubic root of 18250560 is about 263.2845643098.

The spelling of 18250560 in words is "eighteen million, two hundred fifty thousand, five hundred sixty".