18975748 has 12 divisors (see below), whose sum is σ = 36226512. Its totient is φ = 8625320.

The previous prime is 18975731. The next prime is 18975767. The reversal of 18975748 is 84757981.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215590 + ... + 215677.

It is an arithmetic number, because the mean of its divisors is an integer number (3018876).

Almost surely, 2^18975748 is an apocalyptic number.

It is an amenable number.

18975748 is a deficient number, since it is larger than the sum of its proper divisors (17250764).

18975748 is a wasteful number, since it uses less digits than its factorization.

18975748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431282 (or 431280 counting only the distinct ones).

The product of its digits is 564480, while the sum is 49.

The square root of 18975748 is about 4356.1161600674. The cubic root of 18975748 is about 266.7265830644.

The spelling of 18975748 in words is "eighteen million, nine hundred seventy-five thousand, seven hundred forty-eight".