18790850 has 24 divisors (see below), whose sum is σ = 37640820. Its totient is φ = 6937920.

The previous prime is 18790847. The next prime is 18790853. The reversal of 18790850 is 5809781.

It is an interprime number because it is at equal distance from previous prime (18790847) and next prime (18790853).

It can be written as a sum of positive squares in 6 ways, for example, as 10106041 + 8684809 = 3179^2 + 2947^2 .

It is not an unprimeable number, because it can be changed into a prime (18790853) 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 11 ways as a sum of consecutive naturals, for example, 13805 + ... + 15104.

Almost surely, 2^18790850 is an apocalyptic number.

18790850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18790850 is an abundant number, since it is smaller than the sum of its proper divisors (18849970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18790850 is a wasteful number, since it uses less digits than its factorization.

18790850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28934 (or 28929 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 18790850 is about 4334.8414042500. The cubic root of 18790850 is about 265.8574339207.

The spelling of 18790850 in words is "eighteen million, seven hundred ninety thousand, eight hundred fifty".