2244440 has 32 divisors (see below), whose sum is σ = 5510160. Its totient is φ = 816000.

The previous prime is 2244439. The next prime is 2244461. The reversal of 2244440 is 444422.

2244440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (20) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2111 + ... + 2990.

2^2244440 is an apocalyptic number.

2244440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2244440 is an abundant number, since it is smaller than the sum of its proper divisors (3265720).

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

2244440 is a wasteful number, since it uses less digits than its factorization.

2244440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5123 (or 5119 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 2244440 is about 1498.1455203017. The cubic root of 2244440 is about 130.9290449615.

Adding to 2244440 its reverse (444422), we get a palindrome (2688862).

It can be divided in two parts, 224 and 4440, that added together give a palindrome (4664).

The spelling of 2244440 in words is "two million, two hundred forty-four thousand, four hundred forty".