2219564 has 6 divisors (see below), whose sum is σ = 3884244. Its totient is φ = 1109780.

The previous prime is 2219563. The next prime is 2219621. The reversal of 2219564 is 4659122.

It is a happy number.

2219564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2219563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277442 + ... + 277449.

It is an arithmetic number, because the mean of its divisors is an integer number (647374).

2^2219564 is an apocalyptic number.

It is an amenable number.

2219564 is a deficient number, since it is larger than the sum of its proper divisors (1664680).

2219564 is a wasteful number, since it uses less digits than its factorization.

2219564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554895 (or 554893 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 2219564 is about 1489.8201233706. The cubic root of 2219564 is about 130.4435343371.

The spelling of 2219564 in words is "two million, two hundred nineteen thousand, five hundred sixty-four".