197442286 has 16 divisors (see below), whose sum is σ = 313983360. Its totient is φ = 92953440.

The previous prime is 197442277. The next prime is 197442293. The reversal of 197442286 is 682244791.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 40741 + ... + 45328.

It is an arithmetic number, because the mean of its divisors is an integer number (19623960).

Almost surely, 2^197442286 is an apocalyptic number.

197442286 is a deficient number, since it is larger than the sum of its proper divisors (116541074).

197442286 is a wasteful number, since it uses less digits than its factorization.

197442286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86139.

The product of its digits is 193536, while the sum is 43.

The square root of 197442286 is about 14051.4158005519. The cubic root of 197442286 is about 582.2999107695.

The spelling of 197442286 in words is "one hundred ninety-seven million, four hundred forty-two thousand, two hundred eighty-six".