6945438 has 16 divisors (see below), whose sum is σ = 14153616. Its totient is φ = 2271360.

The previous prime is 6945437. The next prime is 6945473. The reversal of 6945438 is 8345496.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 6945396 and 6945405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6945437) 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, 10603 + ... + 11238.

It is an arithmetic number, because the mean of its divisors is an integer number (884601).

Almost surely, 2^6945438 is an apocalyptic number.

6945438 is an abundant number, since it is smaller than the sum of its proper divisors (7208178).

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

6945438 is a wasteful number, since it uses less digits than its factorization.

6945438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21899.

The product of its digits is 103680, while the sum is 39.

The square root of 6945438 is about 2635.4198906436. The cubic root of 6945438 is about 190.7948053559.

The spelling of 6945438 in words is "six million, nine hundred forty-five thousand, four hundred thirty-eight".