18250484 has 12 divisors (see below), whose sum is σ = 36501024. Its totient is φ = 7821624.

The previous prime is 18250481. The next prime is 18250493. The reversal of 18250484 is 48405281.

It is a happy number.

18250484 is an admirable number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 18250484.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18250481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325874 + ... + 325929.

It is an arithmetic number, because the mean of its divisors is an integer number (3041752).

Almost surely, 2^18250484 is an apocalyptic number.

18250484 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18250484 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18250484 is a wasteful number, since it uses less digits than its factorization.

18250484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651814 (or 651812 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 18250484 is about 4272.0585201984. The cubic root of 18250484 is about 263.2841988478.

The spelling of 18250484 in words is "eighteen million, two hundred fifty thousand, four hundred eighty-four".