6959440 has 20 divisors (see below), whose sum is σ = 16180884. Its totient is φ = 2783744.

The previous prime is 6959437. The next prime is 6959471. The reversal of 6959440 is 449596.

It can be written as a sum of positive squares in 2 ways, for example, as 4096576 + 2862864 = 2024^2 + 1692^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×6959440² = 96867610227200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6959440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43417 + ... + 43576.

Almost surely, 2^6959440 is an apocalyptic number.

It is an amenable number.

6959440 is an abundant number, since it is smaller than the sum of its proper divisors (9221444).

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

6959440 is a wasteful number, since it uses less digits than its factorization.

6959440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87006 (or 87000 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 6959440 is about 2638.0750557935. The cubic root of 6959440 is about 190.9229333741.

The spelling of 6959440 in words is "six million, nine hundred fifty-nine thousand, four hundred forty".