2216970 has 160 divisors (see below), whose sum is σ = 7527168. Its totient is φ = 456192.

The previous prime is 2216969. The next prime is 2216989. The reversal of 2216970 is 796122.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 79 ways as a sum of consecutive naturals, for example, 96379 + ... + 96401.

2^2216970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2216970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3763584).

2216970 is an abundant number, since it is smaller than the sum of its proper divisors (5310198).

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

2216970 is a wasteful number, since it uses less digits than its factorization.

2216970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 2216970 is about 1488.9492939654. The cubic root of 2216970 is about 130.3926981622.

The spelling of 2216970 in words is "two million, two hundred sixteen thousand, nine hundred seventy".