197613438 has 32 divisors (see below), whose sum is σ = 433762560. Its totient is φ = 59520960.

The previous prime is 197613421. The next prime is 197613439. The reversal of 197613438 is 834316791.

197613438 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 197613438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197613439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2058 + ... + 19986.

It is an arithmetic number, because the mean of its divisors is an integer number (13555080).

Almost surely, 2^197613438 is an apocalyptic number.

197613438 is an abundant number, since it is smaller than the sum of its proper divisors (236149122).

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

197613438 is a wasteful number, since it uses less digits than its factorization.

197613438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18112.

The product of its digits is 108864, while the sum is 42.

The square root of 197613438 is about 14057.5046861098. The cubic root of 197613438 is about 582.4681169039.

The spelling of 197613438 in words is "one hundred ninety-seven million, six hundred thirteen thousand, four hundred thirty-eight".