6745320 has 96 divisors (see below), whose sum is σ = 22506120. Its totient is φ = 1751040.

The previous prime is 6745307. The next prime is 6745331. The reversal of 6745320 is 235476.

6745320 = T₃₇₀ + T₃₇₁ + ... + T₄₄₉.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4955076 + 1790244 = 2226^2 + 1338^2 .

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 23 ways as a sum of consecutive naturals, for example, 14532 + ... + 14988.

Almost surely, 2^6745320 is an apocalyptic number.

6745320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6745320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11253060).

6745320 is an abundant number, since it is smaller than the sum of its proper divisors (15760800).

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

6745320 is a wasteful number, since it uses less digits than its factorization.

6745320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 6745320 is about 2597.1753887637. The cubic root of 6745320 is about 188.9444701230.

The spelling of 6745320 in words is "six million, seven hundred forty-five thousand, three hundred twenty".