4440135 has 32 divisors (see below), whose sum is σ = 8294400. Its totient is φ = 2027424.

The previous prime is 4440133. The next prime is 4440169. The reversal of 4440135 is 5310444.

It is not a de Polignac number, because 4440135 - 2¹ = 4440133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

4440135 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4440131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4714 + ... + 5576.

It is an arithmetic number, because the mean of its divisors is an integer number (259200).

Almost surely, 2^4440135 is an apocalyptic number.

4440135 is a deficient number, since it is larger than the sum of its proper divisors (3854265).

4440135 is an equidigital number, since it uses as much as digits as its factorization.

4440135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892 (or 878 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 4440135 is about 2107.1627844094. The cubic root of 4440135 is about 164.3609810845.

Adding to 4440135 its reverse (5310444), we get a palindrome (9750579).

The spelling of 4440135 in words is "four million, four hundred forty thousand, one hundred thirty-five".