196667190 has 48 divisors (see below), whose sum is σ = 530279568. Its totient is φ = 52443936.

The previous prime is 196667189. The next prime is 196667197. The reversal of 196667190 is 91766691.

It is a super-2 number, since 2×196667190² = 77355967244992200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196667197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38037 + ... + 42896.

It is an arithmetic number, because the mean of its divisors is an integer number (11047491).

Almost surely, 2^196667190 is an apocalyptic number.

196667190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

196667190 is an abundant number, since it is smaller than the sum of its proper divisors (333612378).

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

196667190 is an equidigital number, since it uses as much as digits as its factorization.

196667190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80955 (or 80943 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 196667190 is about 14023.8079707332. The cubic root of 196667190 is about 581.5369363731.

The spelling of 196667190 in words is "one hundred ninety-six million, six hundred sixty-seven thousand, one hundred ninety".