6456838 has 12 divisors (see below), whose sum is σ = 10289412. Its totient is φ = 3038240.

The previous prime is 6456823. The next prime is 6456851. The reversal of 6456838 is 8386546.

It is a self number, because there is not a number n which added to its sum of digits gives 6456838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5008 + ... + 6163.

It is an arithmetic number, because the mean of its divisors is an integer number (857451).

Almost surely, 2^6456838 is an apocalyptic number.

6456838 is a deficient number, since it is larger than the sum of its proper divisors (3832574).

6456838 is a wasteful number, since it uses less digits than its factorization.

6456838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11207 (or 11190 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 6456838 is about 2541.0308931613. The cubic root of 6456838 is about 186.2115564094.

The spelling of 6456838 in words is "six million, four hundred fifty-six thousand, eight hundred thirty-eight".