197873280 has 320 divisors, whose sum is σ = 773102880. Its totient is φ = 47831040.

The previous prime is 197873267. The next prime is 197873287. The reversal of 197873280 is 82378791.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (197873287) 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 39 ways as a sum of consecutive naturals, for example, 570067 + ... + 570413.

Almost surely, 2^197873280 is an apocalyptic number.

197873280 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 197873280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386551440).

197873280 is an abundant number, since it is smaller than the sum of its proper divisors (575229600).

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

197873280 is a wasteful number, since it uses less digits than its factorization.

197873280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 368 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 197873280 is about 14066.7437596624. The cubic root of 197873280 is about 582.7233009538.

The spelling of 197873280 in words is "one hundred ninety-seven million, eight hundred seventy-three thousand, two hundred eighty".