18001852 has 24 divisors (see below), whose sum is σ = 34760880. Its totient is φ = 8088960.

The previous prime is 18001849. The next prime is 18001853. The reversal of 18001852 is 25810081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18001853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1618 + ... + 6214.

It is an arithmetic number, because the mean of its divisors is an integer number (1448370).

Almost surely, 2^18001852 is an apocalyptic number.

It is an amenable number.

18001852 is a deficient number, since it is larger than the sum of its proper divisors (16759028).

18001852 is a wasteful number, since it uses less digits than its factorization.

18001852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4701 (or 4699 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 18001852 is about 4242.8589417986. The cubic root of 18001852 is about 262.0831272850.

The spelling of 18001852 in words is "eighteen million, one thousand, eight hundred fifty-two".