6700320 has 240 divisors, whose sum is σ = 26345088. Its totient is φ = 1589760.

The previous prime is 6700279. The next prime is 6700321. The reversal of 6700320 is 230076.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6700293 and 6700302.

It is not an unprimeable number, because it can be changed into a prime (6700321) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 142537 + ... + 142583.

Almost surely, 2^6700320 is an apocalyptic number.

6700320 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 6700320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13172544).

6700320 is an abundant number, since it is smaller than the sum of its proper divisors (19644768).

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

6700320 is a wasteful number, since it uses less digits than its factorization.

6700320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 6700320 is about 2588.4976337636. The cubic root of 6700320 is about 188.5233643735.

Adding to 6700320 its reverse (230076), we get a palindrome (6930396).

The spelling of 6700320 in words is "six million, seven hundred thousand, three hundred twenty".