197438 has 8 divisors (see below), whose sum is σ = 313632. Its totient is φ = 92896.

The previous prime is 197423. The next prime is 197441. The reversal of 197438 is 834791.

197438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2870 + ... + 2937.

It is an arithmetic number, because the mean of its divisors is an integer number (39204).

2¹⁹⁷⁴³⁸ is an apocalyptic number.

197438 is a deficient number, since it is larger than the sum of its proper divisors (116194).

197438 is a wasteful number, since it uses less digits than its factorization.

197438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5826.

The product of its digits is 6048, while the sum is 32.

The square root of 197438 is about 444.3399599406. The cubic root of 197438 is about 58.2295697293.

The spelling of 197438 in words is "one hundred ninety-seven thousand, four hundred thirty-eight".