197173240 has 32 divisors (see below), whose sum is σ = 483971760. Its totient is φ = 71699200.

The previous prime is 197173213. The next prime is 197173243. The reversal of 197173240 is 42371791.

It is a junction number, because it is equal to n+sod(n) for n = 197173196 and 197173205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197173243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223621 + ... + 224500.

Almost surely, 2^197173240 is an apocalyptic number.

197173240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197173240 is an abundant number, since it is smaller than the sum of its proper divisors (286798520).

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

197173240 is a wasteful number, since it uses less digits than its factorization.

197173240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448143 (or 448139 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 197173240 is about 14041.8389109119. The cubic root of 197173240 is about 582.0352989695.

The spelling of 197173240 in words is "one hundred ninety-seven million, one hundred seventy-three thousand, two hundred forty".