18749852 has 24 divisors (see below), whose sum is σ = 35925120. Its totient is φ = 8491760.

The previous prime is 18749803. The next prime is 18749867. The reversal of 18749852 is 25894781.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15203 + ... + 16389.

It is an arithmetic number, because the mean of its divisors is an integer number (1496880).

Almost surely, 2^18749852 is an apocalyptic number.

It is an amenable number.

18749852 is a deficient number, since it is larger than the sum of its proper divisors (17175268).

18749852 is a wasteful number, since it uses less digits than its factorization.

18749852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561 (or 1559 counting only the distinct ones).

The product of its digits is 161280, while the sum is 44.

The square root of 18749852 is about 4330.1099293205. The cubic root of 18749852 is about 265.6639433006.

Subtracting 18749852 from its reverse (25894781), we obtain a square (7144929 = 2673²).

The spelling of 18749852 in words is "eighteen million, seven hundred forty-nine thousand, eight hundred fifty-two".