18532572 has 48 divisors (see below), whose sum is σ = 45722880. Its totient is φ = 5830528.

The previous prime is 18532571. The next prime is 18532573. The reversal of 18532572 is 27523581.

It is an interprime number because it is at equal distance from previous prime (18532571) and next prime (18532573).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18532571) 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, 22504 + ... + 23312.

It is an arithmetic number, because the mean of its divisors is an integer number (952560).

Almost surely, 2^18532572 is an apocalyptic number.

18532572 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 18532572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22861440).

18532572 is an abundant number, since it is smaller than the sum of its proper divisors (27190308).

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

18532572 is a wasteful number, since it uses less digits than its factorization.

18532572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922 (or 920 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The square root of 18532572 is about 4304.9473864381. The cubic root of 18532572 is about 264.6337506060.

The spelling of 18532572 in words is "eighteen million, five hundred thirty-two thousand, five hundred seventy-two".