18790814 has 24 divisors (see below), whose sum is σ = 34719840. Its totient is φ = 7578816.

The previous prime is 18790813. The next prime is 18790817. The reversal of 18790814 is 41809781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18790813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3974 + ... + 7305.

It is an arithmetic number, because the mean of its divisors is an integer number (1446660).

Almost surely, 2^18790814 is an apocalyptic number.

18790814 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18790814 is a deficient number, since it is larger than the sum of its proper divisors (15929026).

18790814 is a wasteful number, since it uses less digits than its factorization.

18790814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11312 (or 11305 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 18790814 is about 4334.8372518469. The cubic root of 18790814 is about 265.8572641417.

The spelling of 18790814 in words is "eighteen million, seven hundred ninety thousand, eight hundred fourteen".