18572000 has 48 divisors (see below), whose sum is σ = 45641232. Its totient is φ = 7427200.

The previous prime is 18571991. The next prime is 18572011. The reversal of 18572000 is 27581.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1679 + ... + 6321.

It is an arithmetic number, because the mean of its divisors is an integer number (950859).

Almost surely, 2^18572000 is an apocalyptic number.

18572000 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 18572000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22820616).

18572000 is an abundant number, since it is smaller than the sum of its proper divisors (27069232).

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

18572000 is an equidigital number, since it uses as much as digits as its factorization.

18572000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4668 (or 4650 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 18572000 is about 4309.5243357011. The cubic root of 18572000 is about 264.8212868860.

Adding to 18572000 its reverse (27581), we get a palindrome (18599581).

The spelling of 18572000 in words is "eighteen million, five hundred seventy-two thousand".