197444448 has 72 divisors (see below), whose sum is σ = 566544888. Its totient is φ = 65221632.

The previous prime is 197444431. The next prime is 197444449. The reversal of 197444448 is 844444791.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197444449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29511 + ... + 35577.

It is an arithmetic number, because the mean of its divisors is an integer number (7868679).

Almost surely, 2^197444448 is an apocalyptic number.

197444448 is a gapful number since it is divisible by the number (18) 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 197444448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283272444).

197444448 is an abundant number, since it is smaller than the sum of its proper divisors (369100440).

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

197444448 is a wasteful number, since it uses less digits than its factorization.

197444448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6196 (or 6185 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 197444448 is about 14051.4927320908. The cubic root of 197444448 is about 582.3020361633.

The spelling of 197444448 in words is "one hundred ninety-seven million, four hundred forty-four thousand, four hundred forty-eight".