6670740 has 48 divisors (see below), whose sum is σ = 18946368. Its totient is φ = 1753344.

The previous prime is 6670709. The next prime is 6670751. The reversal of 6670740 is 470766.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 6670698 and 6670707.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3619 + ... + 5141.

It is an arithmetic number, because the mean of its divisors is an integer number (394716).

Almost surely, 2^6670740 is an apocalyptic number.

6670740 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 6670740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9473184).

6670740 is an abundant number, since it is smaller than the sum of its proper divisors (12275628).

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

6670740 is a wasteful number, since it uses less digits than its factorization.

6670740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608 (or 1606 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 6670740 is about 2582.7775746277. Note that the first 3 decimals coincide. The cubic root of 6670740 is about 188.2455295062.

The spelling of 6670740 in words is "six million, six hundred seventy thousand, seven hundred forty".