6905940 has 24 divisors (see below), whose sum is σ = 19336800. Its totient is φ = 1841568.

The previous prime is 6905923. The next prime is 6905947. The reversal of 6905940 is 495096.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6905947) 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, 57490 + ... + 57609.

It is an arithmetic number, because the mean of its divisors is an integer number (805700).

Almost surely, 2^6905940 is an apocalyptic number.

6905940 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6905940 is an abundant number, since it is smaller than the sum of its proper divisors (12430860).

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

6905940 is a wasteful number, since it uses less digits than its factorization.

6905940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115111 (or 115109 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 6905940 is about 2627.9155237564. The cubic root of 6905940 is about 190.4324406862.

The spelling of 6905940 in words is "six million, nine hundred five thousand, nine hundred forty".