2216670 has 32 divisors (see below), whose sum is σ = 5466528. Its totient is φ = 574848.

The previous prime is 2216659. The next prime is 2216699. The reversal of 2216670 is 766122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2216670.

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, 112 + ... + 2108.

It is an arithmetic number, because the mean of its divisors is an integer number (170829).

2^2216670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2216670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2733264).

2216670 is an abundant number, since it is smaller than the sum of its proper divisors (3249858).

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

2216670 is a wasteful number, since it uses less digits than its factorization.

2216670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 2216670 is about 1488.8485483756. The cubic root of 2216670 is about 130.3868163243.

The spelling of 2216670 in words is "two million, two hundred sixteen thousand, six hundred seventy".