6945380 has 24 divisors (see below), whose sum is σ = 15707832. Its totient is φ = 2564352.

The previous prime is 6945361. The next prime is 6945397. The reversal of 6945380 is 835496.

It can be written as a sum of positive squares in 4 ways, for example, as 1290496 + 5654884 = 1136^2 + 2378^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6945380.

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 7 ways as a sum of consecutive naturals, for example, 13097 + ... + 13616.

It is an arithmetic number, because the mean of its divisors is an integer number (654493).

Almost surely, 2^6945380 is an apocalyptic number.

It is an amenable number.

6945380 is an abundant number, since it is smaller than the sum of its proper divisors (8762452).

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

6945380 is a wasteful number, since it uses less digits than its factorization.

6945380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26735 (or 26733 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 6945380 is about 2635.4088866815. The cubic root of 6945380 is about 190.7942742577.

The spelling of 6945380 in words is "six million, nine hundred forty-five thousand, three hundred eighty".