2212744 has 8 divisors (see below), whose sum is σ = 4148910. Its totient is φ = 1106368.

The previous prime is 2212723. The next prime is 2212747. The reversal of 2212744 is 4472122.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1790244 + 422500 = 1338^2 + 650^2 .

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2212747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138289 + ... + 138304.

2^2212744 is an apocalyptic number.

It is an amenable number.

2212744 is a deficient number, since it is larger than the sum of its proper divisors (1936166).

2212744 is a wasteful number, since it uses less digits than its factorization.

2212744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276599 (or 276595 counting only the distinct ones).

The product of its digits is 896, while the sum is 22.

The square root of 2212744 is about 1487.5294955059. The cubic root of 2212744 is about 130.3097937107.

Adding to 2212744 its reverse (4472122), we get a palindrome (6684866).

The spelling of 2212744 in words is "two million, two hundred twelve thousand, seven hundred forty-four".