18904852 has 6 divisors (see below), whose sum is σ = 33083498. Its totient is φ = 9452424.

The previous prime is 18904849. The next prime is 18904859. The reversal of 18904852 is 25840981.

It can be written as a sum of positive squares in only one way, i.e., 11861136 + 7043716 = 3444^2 + 2654^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18904859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2363103 + ... + 2363110.

Almost surely, 2^18904852 is an apocalyptic number.

It is an amenable number.

18904852 is a deficient number, since it is larger than the sum of its proper divisors (14178646).

18904852 is a wasteful number, since it uses less digits than its factorization.

18904852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4726217 (or 4726215 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 18904852 is about 4347.9710210626. The cubic root of 18904852 is about 266.3939928064.

The spelling of 18904852 in words is "eighteen million, nine hundred four thousand, eight hundred fifty-two".