6398842 has 8 divisors (see below), whose sum is σ = 9720000. Its totient is φ = 3158844.

The previous prime is 6398813. The next prime is 6398857. The reversal of 6398842 is 2488936.

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 = 6398795 and 6398804.

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, 20092 + ... + 20407.

It is an arithmetic number, because the mean of its divisors is an integer number (1215000).

Almost surely, 2^6398842 is an apocalyptic number.

6398842 is a deficient number, since it is larger than the sum of its proper divisors (3321158).

6398842 is a wasteful number, since it uses less digits than its factorization.

6398842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40580.

The product of its digits is 82944, while the sum is 40.

The square root of 6398842 is about 2529.5932479353. The cubic root of 6398842 is about 185.6523548360.

The spelling of 6398842 in words is "six million, three hundred ninety-eight thousand, eight hundred forty-two".