2202644 has 6 divisors (see below), whose sum is σ = 3854634. Its totient is φ = 1101320.

The previous prime is 2202631. The next prime is 2202677. The reversal of 2202644 is 4462022.

It can be written as a sum of positive squares in only one way, i.e., 1795600 + 407044 = 1340^2 + 638^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275327 + ... + 275334.

It is an arithmetic number, because the mean of its divisors is an integer number (642439).

2^2202644 is an apocalyptic number.

It is an amenable number.

2202644 is a deficient number, since it is larger than the sum of its proper divisors (1651990).

2202644 is a wasteful number, since it uses less digits than its factorization.

2202644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550665 (or 550663 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2202644 is about 1484.1307220053. The cubic root of 2202644 is about 130.1112263081. Note that the first 3 decimals are identical.

Adding to 2202644 its reverse (4462022), we get a palindrome (6664666).

The spelling of 2202644 in words is "two million, two hundred two thousand, six hundred forty-four".