2309644 has 12 divisors (see below), whose sum is σ = 4093600. Its totient is φ = 1140048.

The previous prime is 2309633. The next prime is 2309663. The reversal of 2309644 is 4469032.

It is a d-powerful number, because it can be written as 2¹⁵ + 3³ + 0 + 9⁶ + 6⁸ + 4⁴ + 4⁸ .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3339 + ... + 3970.

2^2309644 is an apocalyptic number.

It is an amenable number.

2309644 is a deficient number, since it is larger than the sum of its proper divisors (1783956).

2309644 is a wasteful number, since it uses less digits than its factorization.

2309644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7392 (or 7390 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 2309644 is about 1519.7512954428. The cubic root of 2309644 is about 132.1848496824.

The spelling of 2309644 in words is "two million, three hundred nine thousand, six hundred forty-four".