6757440 has 56 divisors (see below), whose sum is σ = 21457920. Its totient is φ = 1801728.

The previous prime is 6757433. The next prime is 6757441. The reversal of 6757440 is 447576.

It is not an unprimeable number, because it can be changed into a prime (6757441) 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, 2560 + ... + 4479.

Almost surely, 2^6757440 is an apocalyptic number.

6757440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6757440 is an abundant number, since it is smaller than the sum of its proper divisors (14700480).

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

6757440 is a wasteful number, since it uses less digits than its factorization.

6757440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7059 (or 7049 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 6757440 is about 2599.5076456899. The cubic root of 6757440 is about 189.0575676376.

The spelling of 6757440 in words is "six million, seven hundred fifty-seven thousand, four hundred forty".