2287744 has 32 divisors (see below), whose sum is σ = 4648140. Its totient is φ = 1121280.

The previous prime is 2287739. The next prime is 2287777. The reversal of 2287744 is 4477822.

It can be written as a sum of positive squares in 2 ways, for example, as 2286144 + 1600 = 1512^2 + 40^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7662 + ... + 7954.

2^2287744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2287744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2324070).

2287744 is an abundant number, since it is smaller than the sum of its proper divisors (2360396).

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

2287744 is an equidigital number, since it uses as much as digits as its factorization.

2287744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368 (or 356 counting only the distinct ones).

The product of its digits is 25088, while the sum is 34.

The square root of 2287744 is about 1512.5290079863. The cubic root of 2287744 is about 131.7657307843.

The spelling of 2287744 in words is "two million, two hundred eighty-seven thousand, seven hundred forty-four".