2744644 has 24 divisors (see below), whose sum is σ = 5560128. Its totient is φ = 1161120.

The previous prime is 2744639. The next prime is 2744689. The reversal of 2744644 is 4464472.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1734 + ... + 2914.

It is an arithmetic number, because the mean of its divisors is an integer number (231672).

2^2744644 is an apocalyptic number.

It is an amenable number.

2744644 is an abundant number, since it is smaller than the sum of its proper divisors (2815484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2744644 is a wasteful number, since it uses less digits than its factorization.

2744644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275 (or 1273 counting only the distinct ones).

The product of its digits is 21504, while the sum is 31.

The square root of 2744644 is about 1656.6967133425. The cubic root of 2744644 is about 140.0109515242.

The spelling of 2744644 in words is "two million, seven hundred forty-four thousand, six hundred forty-four".