18749996 has 6 divisors (see below), whose sum is σ = 32812500. Its totient is φ = 9374996.

The previous prime is 18749993. The next prime is 18750001. The reversal of 18749996 is 69994781.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18749993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2343746 + ... + 2343753.

It is an arithmetic number, because the mean of its divisors is an integer number (5468750).

Almost surely, 2^18749996 is an apocalyptic number.

It is an amenable number.

18749996 is a deficient number, since it is larger than the sum of its proper divisors (14062504).

18749996 is a wasteful number, since it uses less digits than its factorization.

18749996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4687503 (or 4687501 counting only the distinct ones).

The product of its digits is 979776, while the sum is 53.

The square root of 18749996 is about 4330.1265570420. The cubic root of 18749996 is about 265.6646234039.

The spelling of 18749996 in words is "eighteen million, seven hundred forty-nine thousand, nine hundred ninety-six".