18489852 has 36 divisors (see below), whose sum is σ = 47882016. Its totient is φ = 6012480.

The previous prime is 18489841. The next prime is 18489901. The reversal of 18489852 is 25898481.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 18489798 and 18489807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4788 + ... + 7739.

It is an arithmetic number, because the mean of its divisors is an integer number (1330056).

Almost surely, 2^18489852 is an apocalyptic number.

18489852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18489852 is an abundant number, since it is smaller than the sum of its proper divisors (29392164).

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

18489852 is a wasteful number, since it uses less digits than its factorization.

18489852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12578 (or 12573 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 18489852 is about 4299.9827906632. The cubic root of 18489852 is about 264.4302557073.

The spelling of 18489852 in words is "eighteen million, four hundred eighty-nine thousand, eight hundred fifty-two".