18418752 has 280 divisors, whose sum is σ = 66385440. Its totient is φ = 4976640.

The previous prime is 18418739. The next prime is 18418759. The reversal of 18418752 is 25781481.

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

It is not an unprimeable number, because it can be changed into a prime (18418759) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 969399 + ... + 969417.

Almost surely, 2^18418752 is an apocalyptic number.

18418752 is a gapful number since it is divisible by the number (12) 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 18418752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33192720).

18418752 is an abundant number, since it is smaller than the sum of its proper divisors (47966688).

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

18418752 is a wasteful number, since it uses less digits than its factorization.

18418752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71 (or 52 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 18418752 is about 4291.7073525580. The cubic root of 18418752 is about 264.0908778041.

The spelling of 18418752 in words is "eighteen million, four hundred eighteen thousand, seven hundred fifty-two".