199226660 has 12 divisors (see below), whose sum is σ = 418376028. Its totient is φ = 79690656.

The previous prime is 199226659. The next prime is 199226669. The reversal of 199226660 is 66622991.

It can be written as a sum of positive squares in 2 ways, for example, as 86527204 + 112699456 = 9302^2 + 10616^2 .

It is a hoax number, since the sum of its digits (41) 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 (199226669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4980647 + ... + 4980686.

It is an arithmetic number, because the mean of its divisors is an integer number (34864669).

Almost surely, 2^199226660 is an apocalyptic number.

199226660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199226660 is an abundant number, since it is smaller than the sum of its proper divisors (219149368).

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

199226660 is a wasteful number, since it uses less digits than its factorization.

199226660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9961342 (or 9961340 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 199226660 is about 14114.7674440637. The cubic root of 199226660 is about 584.0488207450.

The spelling of 199226660 in words is "one hundred ninety-nine million, two hundred twenty-six thousand, six hundred sixty".