197842680 has 96 divisors (see below), whose sum is σ = 734853600. Its totient is φ = 45220608.

The previous prime is 197842657. The next prime is 197842681. The reversal of 197842680 is 86248791.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197842681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36735 + ... + 41774.

It is an arithmetic number, because the mean of its divisors is an integer number (7654725).

Almost surely, 2^197842680 is an apocalyptic number.

197842680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197842680 is an abundant number, since it is smaller than the sum of its proper divisors (537010920).

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

197842680 is a wasteful number, since it uses less digits than its factorization.

197842680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78533 (or 78526 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 197842680 is about 14065.6560458444. The cubic root of 197842680 is about 582.6932611015.

The spelling of 197842680 in words is "one hundred ninety-seven million, eight hundred forty-two thousand, six hundred eighty".