6672240 has 80 divisors (see below), whose sum is σ = 22989600. Its totient is φ = 1778688.

The previous prime is 6672229. The next prime is 6672257. The reversal of 6672240 is 422766.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (27).

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 15 ways as a sum of consecutive naturals, for example, 616 + ... + 3704.

It is an arithmetic number, because the mean of its divisors is an integer number (287370).

Almost surely, 2^6672240 is an apocalyptic number.

6672240 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 6672240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11494800).

6672240 is an abundant number, since it is smaller than the sum of its proper divisors (16317360).

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

6672240 is a wasteful number, since it uses less digits than its factorization.

6672240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3111 (or 3099 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 6672240 is about 2583.0679433573. The cubic root of 6672240 is about 188.2596382424.

The spelling of 6672240 in words is "six million, six hundred seventy-two thousand, two hundred forty".