2166322 has 16 divisors (see below), whose sum is σ = 3359232. Its totient is φ = 1047280.

The previous prime is 2166319. The next prime is 2166403. The reversal of 2166322 is 2236612.

It is a happy number.

It is a pancake number, because a pancake can be divided into 2166322 parts by 2081 straight cuts.

It is a junction number, because it is equal to n+sod(n) for n = 2166293 and 2166302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11247 + ... + 11437.

It is an arithmetic number, because the mean of its divisors is an integer number (209952).

2^2166322 is an apocalyptic number.

2166322 is a deficient number, since it is larger than the sum of its proper divisors (1192910).

2166322 is a wasteful number, since it uses less digits than its factorization.

2166322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353.

The product of its digits is 864, while the sum is 22.

The square root of 2166322 is about 1471.8430622862. The cubic root of 2166322 is about 129.3920727856.

The spelling of 2166322 in words is "two million, one hundred sixty-six thousand, three hundred twenty-two".