18752492 has 12 divisors (see below), whose sum is σ = 35800296. Its totient is φ = 8523840.

The previous prime is 18752491. The next prime is 18752497. The reversal of 18752492 is 29425781.

It is not an unprimeable number, because it can be changed into a prime (18752491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213053 + ... + 213140.

It is an arithmetic number, because the mean of its divisors is an integer number (2983358).

Almost surely, 2^18752492 is an apocalyptic number.

It is an amenable number.

18752492 is a deficient number, since it is larger than the sum of its proper divisors (17047804).

18752492 is a wasteful number, since it uses less digits than its factorization.

18752492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426208 (or 426206 counting only the distinct ones).

The product of its digits is 40320, while the sum is 38.

The square root of 18752492 is about 4330.4147607360. The cubic root of 18752492 is about 265.6764113083.

Subtracting 18752492 from its reverse (29425781), we obtain a square (10673289 = 3267²).

The spelling of 18752492 in words is "eighteen million, seven hundred fifty-two thousand, four hundred ninety-two".