197143680 has 64 divisors (see below), whose sum is σ = 628401600. Its totient is φ = 52571136.

The previous prime is 197143669. The next prime is 197143759. The reversal of 197143680 is 86341791.

It is a tau number, because it is divible by the number of its divisors (64).

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, 49420 + ... + 53259.

It is an arithmetic number, because the mean of its divisors is an integer number (9818775).

Almost surely, 2^197143680 is an apocalyptic number.

197143680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197143680 is an abundant number, since it is smaller than the sum of its proper divisors (431257920).

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

197143680 is a wasteful number, since it uses less digits than its factorization.

197143680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102701 (or 102689 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 197143680 is about 14040.7863027681. The cubic root of 197143680 is about 582.0062114806.

The spelling of 197143680 in words is "one hundred ninety-seven million, one hundred forty-three thousand, six hundred eighty".