197444324 has 72 divisors (see below), whose sum is σ = 464359392. Its totient is φ = 72387840.

The previous prime is 197444323. The next prime is 197444329. The reversal of 197444324 is 423444791.

It is a happy number.

It is a super-2 number, since 2×197444324² = 77968522159633952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (197444323) 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 23 ways as a sum of consecutive naturals, for example, 33959 + ... + 39345.

It is an arithmetic number, because the mean of its divisors is an integer number (6449436).

Almost surely, 2^197444324 is an apocalyptic number.

197444324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197444324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232179696).

197444324 is an abundant number, since it is smaller than the sum of its proper divisors (266915068).

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

197444324 is a wasteful number, since it uses less digits than its factorization.

197444324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5433 (or 5424 counting only the distinct ones).

The product of its digits is 96768, while the sum is 38.

The square root of 197444324 is about 14051.4883197475. The cubic root of 197444324 is about 582.3019142632.

The spelling of 197444324 in words is "one hundred ninety-seven million, four hundred forty-four thousand, three hundred twenty-four".