6722418 has 16 divisors (see below), whose sum is σ = 13527360. Its totient is φ = 2227056.

The previous prime is 6722413. The next prime is 6722423. The reversal of 6722418 is 8142276.

It is an interprime number because it is at equal distance from previous prime (6722413) and next prime (6722423).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6722411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2353 + ... + 4356.

It is an arithmetic number, because the mean of its divisors is an integer number (845460).

Almost surely, 2^6722418 is an apocalyptic number.

6722418 is an abundant number, since it is smaller than the sum of its proper divisors (6804942).

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

6722418 is a wasteful number, since it uses less digits than its factorization.

6722418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6881.

The product of its digits is 5376, while the sum is 30.

The square root of 6722418 is about 2592.7626192924. The cubic root of 6722418 is about 188.7303901970.

It can be divided in two parts, 6722 and 418, that added together give a triangular number (7140 = T₁₁₉).

The spelling of 6722418 in words is "six million, seven hundred twenty-two thousand, four hundred eighteen".