6813438 has 32 divisors (see below), whose sum is σ = 14601600. Its totient is φ = 2113056.

The previous prime is 6813409. The next prime is 6813473. The reversal of 6813438 is 8343186.

It is a junction number, because it is equal to n+sod(n) for n = 6813399 and 6813408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6220 + ... + 7232.

It is an arithmetic number, because the mean of its divisors is an integer number (456300).

Almost surely, 2^6813438 is an apocalyptic number.

6813438 is an abundant number, since it is smaller than the sum of its proper divisors (7788162).

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

6813438 is a wasteful number, since it uses less digits than its factorization.

6813438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096.

The product of its digits is 13824, while the sum is 33.

The square root of 6813438 is about 2610.2563092539. The cubic root of 6813438 is about 189.5783632665.

The spelling of 6813438 in words is "six million, eight hundred thirteen thousand, four hundred thirty-eight".