197951338 has 16 divisors (see below), whose sum is σ = 321291936. Its totient is φ = 90926640.

The previous prime is 197951323. The next prime is 197951339. The reversal of 197951338 is 833159791.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (197951339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12556 + ... + 23527.

It is an arithmetic number, because the mean of its divisors is an integer number (20080746).

Almost surely, 2^197951338 is an apocalyptic number.

197951338 is a deficient number, since it is larger than the sum of its proper divisors (123340598).

197951338 is a wasteful number, since it uses less digits than its factorization.

197951338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36309.

The product of its digits is 204120, while the sum is 46.

The square root of 197951338 is about 14069.5180443397. The cubic root of 197951338 is about 582.7999160405.

The spelling of 197951338 in words is "one hundred ninety-seven million, nine hundred fifty-one thousand, three hundred thirty-eight".