6740720 has 40 divisors (see below), whose sum is σ = 17912544. Its totient is φ = 2310912.

The previous prime is 6740719. The next prime is 6740737. The reversal of 6740720 is 270476.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×6740720² = 90874612236800, 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 6740720.

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, 5459 + ... + 6578.

Almost surely, 2^6740720 is an apocalyptic number.

It is an amenable number.

6740720 is an abundant number, since it is smaller than the sum of its proper divisors (11171824).

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

6740720 is a wasteful number, since it uses less digits than its factorization.

6740720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12057 (or 12051 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 6740720 is about 2596.2896602652. The cubic root of 6740720 is about 188.9015098577.

The spelling of 6740720 in words is "six million, seven hundred forty thousand, seven hundred twenty".