197942 has 8 divisors (see below), whose sum is σ = 312600. Its totient is φ = 93744.

The previous prime is 197933. The next prime is 197947. The reversal of 197942 is 249791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 197899 and 197908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2567 + ... + 2642.

It is an arithmetic number, because the mean of its divisors is an integer number (39075).

2¹⁹⁷⁹⁴² is an apocalyptic number.

197942 is a deficient number, since it is larger than the sum of its proper divisors (114658).

197942 is a wasteful number, since it uses less digits than its factorization.

197942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5230.

The product of its digits is 4536, while the sum is 32.

The square root of 197942 is about 444.9067317989. The cubic root of 197942 is about 58.2790751715.

The spelling of 197942 in words is "one hundred ninety-seven thousand, nine hundred forty-two".