2269440 has 108 divisors (see below), whose sum is σ = 7891884. Its totient is φ = 602112.

The previous prime is 2269439. The next prime is 2269441. The reversal of 2269440 is 449622.

It is an interprime number because it is at equal distance from previous prime (2269439) and next prime (2269441).

It can be written as a sum of positive squares in 2 ways, for example, as 1679616 + 589824 = 1296^2 + 768^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2269441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11422 + ... + 11618.

It is an arithmetic number, because the mean of its divisors is an integer number (73073).

2^2269440 is an apocalyptic number.

2269440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2269440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3945942).

2269440 is an abundant number, since it is smaller than the sum of its proper divisors (5622444).

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

2269440 is a wasteful number, since it uses less digits than its factorization.

2269440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2269440 is about 1506.4660633416. The cubic root of 2269440 is about 131.4133747845.

The spelling of 2269440 in words is "two million, two hundred sixty-nine thousand, four hundred forty".