18526068 has 54 divisors (see below), whose sum is σ = 51486162. Its totient is φ = 5612640.

The previous prime is 18526043. The next prime is 18526069. The reversal of 18526068 is 86062581.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12236004 + 6290064 = 3498^2 + 2508^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18526069) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2230 + ... + 6482.

Almost surely, 2^18526068 is an apocalyptic number.

18526068 is a gapful number since it is divisible by the number (18) 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 18526068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25743081).

18526068 is an abundant number, since it is smaller than the sum of its proper divisors (32960094).

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

18526068 is a wasteful number, since it uses less digits than its factorization.

18526068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4285 (or 4269 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 18526068 is about 4304.1919102196. The cubic root of 18526068 is about 264.6027892748.

The spelling of 18526068 in words is "eighteen million, five hundred twenty-six thousand, sixty-eight".