440001220402 has 16 divisors (see below), whose sum is σ = 667406814624. Its totient is φ = 217544236000.

The previous prime is 440001220397. The next prime is 440001220423. The reversal of 440001220402 is 204022100044.

It is a self number, because there is not a number n which added to its sum of digits gives 440001220402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2914624 + ... + 3061867.

It is an arithmetic number, because the mean of its divisors is an integer number (41712925914).

Almost surely, 2^440001220402 is an apocalyptic number.

440001220402 is a deficient number, since it is larger than the sum of its proper divisors (227405594222).

440001220402 is a wasteful number, since it uses less digits than its factorization.

440001220402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5976905.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 440001220402 its reverse (204022100044), we get a palindrome (644023320446).

The spelling of 440001220402 in words is "four hundred forty billion, one million, two hundred twenty thousand, four hundred two".