4402240 has 28 divisors (see below), whose sum is σ = 10483596. Its totient is φ = 1760768.

The previous prime is 4402219. The next prime is 4402241. The reversal of 4402240 is 422044.

It can be written as a sum of positive squares in 2 ways, for example, as 746496 + 3655744 = 864^2 + 1912^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (4402241) by changing a digit.

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, 6559 + ... + 7198.

Almost surely, 2^4402240 is an apocalyptic number.

4402240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4402240 is an abundant number, since it is smaller than the sum of its proper divisors (6081356).

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

4402240 is a wasteful number, since it uses less digits than its factorization.

4402240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13774 (or 13764 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 4402240 is about 2098.1515674517. The cubic root of 4402240 is about 163.8920566700.

Adding to 4402240 its reverse (422044), we get a palindrome (4824284).

The spelling of 4402240 in words is "four million, four hundred two thousand, two hundred forty".