440024225 has 12 divisors (see below), whose sum is σ = 546461676. Its totient is φ = 351482880.

The previous prime is 440024161. The next prime is 440024231. The reversal of 440024225 is 522420044.

It can be written as a sum of positive squares in 6 ways, for example, as 80694289 + 359329936 = 8983^2 + 18956^2 .

It is not a de Polignac number, because 440024225 - 2⁶ = 440024161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 440024225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3749 + ... + 29901.

It is an arithmetic number, because the mean of its divisors is an integer number (45538473).

Almost surely, 2^440024225 is an apocalyptic number.

It is an amenable number.

440024225 is a deficient number, since it is larger than the sum of its proper divisors (106437451).

440024225 is a wasteful number, since it uses less digits than its factorization.

440024225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26836 (or 26831 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 440024225 is about 20976.7543962358. The cubic root of 440024225 is about 760.6044504603.

Adding to 440024225 its reverse (522420044), we get a palindrome (962444269).

The spelling of 440024225 in words is "four hundred forty million, twenty-four thousand, two hundred twenty-five".