2220964 has 12 divisors (see below), whose sum is σ = 4012288. Its totient is φ = 1074600.

The previous prime is 2220961. The next prime is 2220971. The reversal of 2220964 is 4690222.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2220961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8832 + ... + 9079.

2^2220964 is an apocalyptic number.

It is an amenable number.

2220964 is a deficient number, since it is larger than the sum of its proper divisors (1791324).

2220964 is a wasteful number, since it uses less digits than its factorization.

2220964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17946 (or 17944 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2220964 is about 1490.2899046830. The cubic root of 2220964 is about 130.4709545219.

The spelling of 2220964 in words is "two million, two hundred twenty thousand, nine hundred sixty-four".