2264644 has 6 divisors (see below), whose sum is σ = 3963134. Its totient is φ = 1132320.

The previous prime is 2264641. The next prime is 2264657. The reversal of 2264644 is 4464622.

It can be written as a sum of positive squares in only one way, i.e., 1855044 + 409600 = 1362^2 + 640^2 .

It is a super-2 number, since 2×2264644² = 10257224893472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2264641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283077 + ... + 283084.

2^2264644 is an apocalyptic number.

It is an amenable number.

2264644 is a deficient number, since it is larger than the sum of its proper divisors (1698490).

2264644 is a wasteful number, since it uses less digits than its factorization.

2264644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566165 (or 566163 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

The square root of 2264644 is about 1504.8734166035. The cubic root of 2264644 is about 131.3207376814.

The spelling of 2264644 in words is "two million, two hundred sixty-four thousand, six hundred forty-four".