197121344 has 56 divisors (see below), whose sum is σ = 449080128. Its totient is φ = 84096000.

The previous prime is 197121329. The next prime is 197121361. The reversal of 197121344 is 443121791.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 197121344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111572 + ... + 113324.

It is an arithmetic number, because the mean of its divisors is an integer number (8019288).

Almost surely, 2^197121344 is an apocalyptic number.

197121344 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 197121344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224540064).

197121344 is an abundant number, since it is smaller than the sum of its proper divisors (251958784).

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

197121344 is a wasteful number, since it uses less digits than its factorization.

197121344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023 (or 2013 counting only the distinct ones).

The product of its digits is 6048, while the sum is 32.

The square root of 197121344 is about 14039.9908831879. The cubic root of 197121344 is about 581.9842305887.

The spelling of 197121344 in words is "one hundred ninety-seven million, one hundred twenty-one thousand, three hundred forty-four".