197226642 has 8 divisors (see below), whose sum is σ = 394453296. Its totient is φ = 65742212.

The previous prime is 197226629. The next prime is 197226647. The reversal of 197226642 is 246622791.

It is a sphenic number, since it is the product of 3 distinct primes.

197226642 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 197226642.

It is not an unprimeable number, because it can be changed into a prime (197226647) 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, 16435548 + ... + 16435559.

It is an arithmetic number, because the mean of its divisors is an integer number (49306662).

Almost surely, 2^197226642 is an apocalyptic number.

197226642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

197226642 is a wasteful number, since it uses less digits than its factorization.

197226642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32871112.

The product of its digits is 72576, while the sum is 39.

The square root of 197226642 is about 14043.7403137483. The cubic root of 197226642 is about 582.0878399793.

The spelling of 197226642 in words is "one hundred ninety-seven million, two hundred twenty-six thousand, six hundred forty-two".