18532086 has 32 divisors (see below), whose sum is σ = 38203488. Its totient is φ = 5990400.

The previous prime is 18532081. The next prime is 18532093. The reversal of 18532086 is 68023581.

It is a happy number.

It is a super-2 number, since 2×18532086² = 686876423022792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18532081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31830 + ... + 32406.

It is an arithmetic number, because the mean of its divisors is an integer number (1193859).

Almost surely, 2^18532086 is an apocalyptic number.

18532086 is an abundant number, since it is smaller than the sum of its proper divisors (19671402).

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

18532086 is a wasteful number, since it uses less digits than its factorization.

18532086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 18532086 is about 4304.8909393851. The cubic root of 18532086 is about 264.6314373253.

The spelling of 18532086 in words is "eighteen million, five hundred thirty-two thousand, eighty-six".