6840222 has 16 divisors (see below), whose sum is σ = 14485392. Its totient is φ = 2145920.

The previous prime is 6840221. The next prime is 6840241. The reversal of 6840222 is 2220486.

It is a junction number, because it is equal to n+sod(n) for n = 6840192 and 6840201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6840221) 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, 33429 + ... + 33632.

It is an arithmetic number, because the mean of its divisors is an integer number (905337).

Almost surely, 2^6840222 is an apocalyptic number.

6840222 is an abundant number, since it is smaller than the sum of its proper divisors (7645170).

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

6840222 is a wasteful number, since it uses less digits than its factorization.

6840222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67083.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 6840222 is about 2615.3818076908. The cubic root of 6840222 is about 189.8264527941.

The spelling of 6840222 in words is "six million, eight hundred forty thousand, two hundred twenty-two".