397442 has 8 divisors (see below), whose sum is σ = 627600. Its totient is φ = 188244.

The previous prime is 397433. The next prime is 397459. The reversal of 397442 is 244793.

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

It is an unprimeable number.

397442 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5192 + ... + 5267.

It is an arithmetic number, because the mean of its divisors is an integer number (78450).

2³⁹⁷⁴⁴² is an apocalyptic number.

397442 is a deficient number, since it is larger than the sum of its proper divisors (230158).

397442 is a wasteful number, since it uses less digits than its factorization.

397442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10480.

The product of its digits is 6048, while the sum is 29.

The square root of 397442 is about 630.4300119760. The cubic root of 397442 is about 73.5232314303.

The spelling of 397442 in words is "three hundred ninety-seven thousand, four hundred forty-two".