197191344 has 80 divisors (see below), whose sum is σ = 584462592. Its totient is φ = 56120064.

The previous prime is 197191339. The next prime is 197191363. The reversal of 197191344 is 443191791.

It is a super-2 number, since 2×197191344² = 77768852297052672, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 97447 + ... + 99449.

Almost surely, 2^197191344 is an apocalyptic number.

197191344 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 197191344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292231296).

197191344 is an abundant number, since it is smaller than the sum of its proper divisors (387271248).

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

197191344 is a wasteful number, since it uses less digits than its factorization.

197191344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2314 (or 2308 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 197191344 is about 14042.4835410265. The cubic root of 197191344 is about 582.0531121450.

The spelling of 197191344 in words is "one hundred ninety-seven million, one hundred ninety-one thousand, three hundred forty-four".