6944390 has 32 divisors (see below), whose sum is σ = 13210560. Its totient is φ = 2623104.

The previous prime is 6944387. The next prime is 6944429. The reversal of 6944390 is 934496.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6944390.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24932 + ... + 25208.

It is an arithmetic number, because the mean of its divisors is an integer number (412830).

Almost surely, 2^6944390 is an apocalyptic number.

6944390 is a deficient number, since it is larger than the sum of its proper divisors (6266170).

6944390 is a wasteful number, since it uses less digits than its factorization.

6944390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 6944390 is about 2635.2210533464. The cubic root of 6944390 is about 190.7852085043.

The spelling of 6944390 in words is "six million, nine hundred forty-four thousand, three hundred ninety".