18740996 has 12 divisors (see below), whose sum is σ = 33353040. Its totient is φ = 9211560.

The previous prime is 18740993. The next prime is 18740999. The reversal of 18740996 is 69904781.

It is an interprime number because it is at equal distance from previous prime (18740993) and next prime (18740999).

It is not an unprimeable number, because it can be changed into a prime (18740993) 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, 39470 + ... + 39941.

It is an arithmetic number, because the mean of its divisors is an integer number (2779420).

Almost surely, 2^18740996 is an apocalyptic number.

It is an amenable number.

18740996 is a deficient number, since it is larger than the sum of its proper divisors (14612044).

18740996 is a wasteful number, since it uses less digits than its factorization.

18740996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79474 (or 79472 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 18740996 is about 4329.0872017089. The cubic root of 18740996 is about 265.6221102523.

The spelling of 18740996 in words is "eighteen million, seven hundred forty thousand, nine hundred ninety-six".