18252680 has 32 divisors (see below), whose sum is σ = 41653440. Its totient is φ = 7197120.

The previous prime is 18252671. The next prime is 18252691. The reversal of 18252680 is 8625281.

18252680 = 593² + 594² + ... + 640².

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374 + ... + 6053.

It is an arithmetic number, because the mean of its divisors is an integer number (1301670).

Almost surely, 2^18252680 is an apocalyptic number.

18252680 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 18252680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20826720).

18252680 is an abundant number, since it is smaller than the sum of its proper divisors (23400760).

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

18252680 is a wasteful number, since it uses less digits than its factorization.

18252680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6509 (or 6505 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 18252680 is about 4272.3155314185. The cubic root of 18252680 is about 263.2947583653.

The spelling of 18252680 in words is "eighteen million, two hundred fifty-two thousand, six hundred eighty".