6745944 has 16 divisors (see below), whose sum is σ = 16864920. Its totient is φ = 2248640.

The previous prime is 6745943. The next prime is 6745961. The reversal of 6745944 is 4495476.

It is a happy number.

It is a super-2 number, since 2×6745944² = 91015520902272, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6745943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140517 + ... + 140564.

Almost surely, 2^6745944 is an apocalyptic number.

It is an amenable number.

6745944 is an abundant number, since it is smaller than the sum of its proper divisors (10118976).

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

6745944 is a wasteful number, since it uses less digits than its factorization.

6745944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281090 (or 281086 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 6745944 is about 2597.2955164940. The cubic root of 6745944 is about 188.9502962718.

The spelling of 6745944 in words is "six million, seven hundred forty-five thousand, nine hundred forty-four".