6426438 has 16 divisors (see below), whose sum is σ = 12933696. Its totient is φ = 2128680.

The previous prime is 6426437. The next prime is 6426443. The reversal of 6426438 is 8346246.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6426399 and 6426408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6426437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2308 + ... + 4263.

It is an arithmetic number, because the mean of its divisors is an integer number (808356).

Almost surely, 2^6426438 is an apocalyptic number.

6426438 is an abundant number, since it is smaller than the sum of its proper divisors (6507258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6426438 is a wasteful number, since it uses less digits than its factorization.

6426438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6739.

The product of its digits is 27648, while the sum is 33.

The square root of 6426438 is about 2535.0420114862. The cubic root of 6426438 is about 185.9188569638.

The spelling of 6426438 in words is "six million, four hundred twenty-six thousand, four hundred thirty-eight".