197449120 has 96 divisors (see below), whose sum is σ = 520914240. Its totient is φ = 70103040.

The previous prime is 197449103. The next prime is 197449123. The reversal of 197449120 is 21944791.

It is a self number, because there is not a number n which added to its sum of digits gives 197449120.

It is not an unprimeable number, because it can be changed into a prime (197449123) 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 15 ways as a sum of consecutive naturals, for example, 74376 + ... + 76984.

It is an arithmetic number, because the mean of its divisors is an integer number (5426190).

Almost surely, 2^197449120 is an apocalyptic number.

197449120 is a gapful number since it is divisible by the number (10) 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 197449120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260457120).

197449120 is an abundant number, since it is smaller than the sum of its proper divisors (323465120).

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

197449120 is a wasteful number, since it uses less digits than its factorization.

197449120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2678 (or 2670 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 197449120 is about 14051.6589767899. The cubic root of 197449120 is about 582.3066290056.

The spelling of 197449120 in words is "one hundred ninety-seven million, four hundred forty-nine thousand, one hundred twenty".