197189264 has 40 divisors (see below), whose sum is σ = 396760320. Its totient is φ = 94838400.

The previous prime is 197189261. The next prime is 197189297. The reversal of 197189264 is 462981791.

It is not an unprimeable number, because it can be changed into a prime (197189261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87674 + ... + 89894.

It is an arithmetic number, because the mean of its divisors is an integer number (9919008).

Almost surely, 2^197189264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197189264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198380160).

197189264 is an abundant number, since it is smaller than the sum of its proper divisors (199571056).

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

197189264 is a wasteful number, since it uses less digits than its factorization.

197189264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2439 (or 2433 counting only the distinct ones).

The product of its digits is 217728, while the sum is 47.

The square root of 197189264 is about 14042.4094798578. The cubic root of 197189264 is about 582.0510656137.

It can be divided in two parts, 19718 and 9264, that added together give a palindrome (28982).

The spelling of 197189264 in words is "one hundred ninety-seven million, one hundred eighty-nine thousand, two hundred sixty-four".