4440402 has 12 divisors (see below), whose sum is σ = 9620910. Its totient is φ = 1480128.

The previous prime is 4440389. The next prime is 4440413. The reversal of 4440402 is 2040444.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4372281 + 68121 = 2091^2 + 261^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 246689 = 4440402 / (4 + 4 + 4 + 0 + 4 + 0 + 2).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123327 + ... + 123362.

Almost surely, 2^4440402 is an apocalyptic number.

4440402 is an abundant number, since it is smaller than the sum of its proper divisors (5180508).

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

4440402 is a wasteful number, since it uses less digits than its factorization.

4440402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246697 (or 246694 counting only the distinct ones).

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

The square root of 4440402 is about 2107.2261387900. The cubic root of 4440402 is about 164.3642755416.

Adding to 4440402 its reverse (2040444), we get a palindrome (6480846).

The spelling of 4440402 in words is "four million, four hundred forty thousand, four hundred two".