1622166 has 32 divisors (see below), whose sum is σ = 3994368. Its totient is φ = 427680.

The previous prime is 1622149. The next prime is 1622189. The reversal of 1622166 is 6612261.

It is a nude number because it is divisible by every one of its digits.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 940 + ... + 2031.

It is an arithmetic number, because the mean of its divisors is an integer number (124824).

2^1622166 is an apocalyptic number.

1622166 is an abundant number, since it is smaller than the sum of its proper divisors (2372202).

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

1622166 is a wasteful number, since it uses less digits than its factorization.

1622166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2996.

The product of its digits is 864, while the sum is 24.

The square root of 1622166 is about 1273.6428070695. The cubic root of 1622166 is about 117.4983491544.

The spelling of 1622166 in words is "one million, six hundred twenty-two thousand, one hundred sixty-six".