196809180 has 48 divisors (see below), whose sum is σ = 560109984. Its totient is φ = 51621120.

The previous prime is 196809169. The next prime is 196809181. The reversal of 196809180 is 81908691.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196809181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23227 + ... + 30546.

It is an arithmetic number, because the mean of its divisors is an integer number (11668958).

Almost surely, 2^196809180 is an apocalyptic number.

196809180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196809180 is an abundant number, since it is smaller than the sum of its proper divisors (363300804).

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

196809180 is a wasteful number, since it uses less digits than its factorization.

196809180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53846 (or 53844 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 196809180 is about 14028.8695196726. The cubic root of 196809180 is about 581.6768556036.

The spelling of 196809180 in words is "one hundred ninety-six million, eight hundred nine thousand, one hundred eighty".