4420440 has 64 divisors (see below), whose sum is σ = 14738400. Its totient is φ = 1178496.

The previous prime is 4420421. The next prime is 4420453. The reversal of 4420440 is 440244.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 15 ways as a sum of consecutive naturals, for example, 967 + ... + 3126.

Almost surely, 2^4420440 is an apocalyptic number.

4420440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4420440 is an abundant number, since it is smaller than the sum of its proper divisors (10317960).

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

4420440 is a wasteful number, since it uses less digits than its factorization.

4420440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4113 (or 4103 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 4420440 is about 2102.4842448875. The cubic root of 4420440 is about 164.1176035312.

Adding to 4420440 its reverse (440244), we get a palindrome (4860684).

It can be divided in two parts, 44204 and 40, that added together give a palindrome (44244).

The spelling of 4420440 in words is "four million, four hundred twenty thousand, four hundred forty".