18252032 has 36 divisors (see below), whose sum is σ = 36914640. Its totient is φ = 9005568.

The previous prime is 18252029. The next prime is 18252061. The reversal of 18252032 is 23025281.

It is a junction number, because it is equal to n+sod(n) for n = 18251989 and 18252007.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20819 + ... + 21677.

Almost surely, 2^18252032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18252032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18457320).

18252032 is an abundant number, since it is smaller than the sum of its proper divisors (18662608).

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

18252032 is an frugal number, since it uses more digits than its factorization.

18252032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958 (or 944 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 18252032 is about 4272.2396936502. The cubic root of 18252032 is about 263.2916425302.

The spelling of 18252032 in words is "eighteen million, two hundred fifty-two thousand, thirty-two".