18732852 has 18 divisors (see below), whose sum is σ = 47352578. Its totient is φ = 6244272.

The previous prime is 18732839. The next prime is 18732871. The reversal of 18732852 is 25823781.

It can be written as a sum of positive squares in only one way, i.e., 15023376 + 3709476 = 3876^2 + 1926^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 520357 = 18732852 / (1 + 8 + 7 + 3 + 2 + 8 + 5 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 260143 + ... + 260214.

Almost surely, 2^18732852 is an apocalyptic number.

18732852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18732852 is an abundant number, since it is smaller than the sum of its proper divisors (28619726).

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

18732852 is a wasteful number, since it uses less digits than its factorization.

18732852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520367 (or 520362 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 18732852 is about 4328.1464855062. The cubic root of 18732852 is about 265.5836288417.

The spelling of 18732852 in words is "eighteen million, seven hundred thirty-two thousand, eight hundred fifty-two".