2214664 has 8 divisors (see below), whose sum is σ = 4152510. Its totient is φ = 1107328.

The previous prime is 2214661. The next prime is 2214679. The reversal of 2214664 is 4664122.

It can be written as a sum of positive squares in only one way, i.e., 1664100 + 550564 = 1290^2 + 742^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2214661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138409 + ... + 138424.

2^2214664 is an apocalyptic number.

It is an amenable number.

2214664 is a deficient number, since it is larger than the sum of its proper divisors (1937846).

2214664 is a wasteful number, since it uses less digits than its factorization.

2214664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276839 (or 276835 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 2214664 is about 1488.1747209249. The cubic root of 2214664 is about 130.3474727906.

Adding to 2214664 its reverse (4664122), we get a palindrome (6878786).

The spelling of 2214664 in words is "two million, two hundred fourteen thousand, six hundred sixty-four".