180813850 has 24 divisors (see below), whose sum is σ = 384359328. Its totient is φ = 61993200.

The previous prime is 180813817. The next prime is 180813851. The reversal of 180813850 is 58318081.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (180813851) 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, 257956 + ... + 258655.

It is an arithmetic number, because the mean of its divisors is an integer number (16014972).

Almost surely, 2^180813850 is an apocalyptic number.

180813850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

180813850 is an abundant number, since it is smaller than the sum of its proper divisors (203545478).

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

180813850 is a wasteful number, since it uses less digits than its factorization.

180813850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516630 (or 516625 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 34.

The square root of 180813850 is about 13446.7040571286. The cubic root of 180813850 is about 565.4712960055.

The spelling of 180813850 in words is "one hundred eighty million, eight hundred thirteen thousand, eight hundred fifty".