6738438 has 32 divisors (see below), whose sum is σ = 15595776. Its totient is φ = 1901088.

The previous prime is 6738427. The next prime is 6738451. The reversal of 6738438 is 8348376.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 6738396 and 6738405.

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, 2520 + ... + 4452.

It is an arithmetic number, because the mean of its divisors is an integer number (487368).

Almost surely, 2^6738438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6738438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7797888).

6738438 is an abundant number, since it is smaller than the sum of its proper divisors (8857338).

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

6738438 is a wasteful number, since it uses less digits than its factorization.

6738438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028.

The product of its digits is 96768, while the sum is 39.

The square root of 6738438 is about 2595.8501497583. The cubic root of 6738438 is about 188.8801905773.

The spelling of 6738438 in words is "six million, seven hundred thirty-eight thousand, four hundred thirty-eight".