440220325 has 6 divisors (see below), whose sum is σ = 545873234. Its totient is φ = 352176240.

The previous prime is 440220323. The next prime is 440220343. The reversal of 440220325 is 523022044.

It can be written as a sum of positive squares in 3 ways, for example, as 8661249 + 431559076 = 2943^2 + 20774^2 .

It is not a de Polignac number, because 440220325 - 2¹ = 440220323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 440220296 and 440220305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440220323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8804382 + ... + 8804431.

Almost surely, 2^440220325 is an apocalyptic number.

It is an amenable number.

440220325 is a deficient number, since it is larger than the sum of its proper divisors (105652909).

440220325 is a wasteful number, since it uses less digits than its factorization.

440220325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17608823 (or 17608818 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 440220325 is about 20981.4280972483. The cubic root of 440220325 is about 760.7174233168.

Adding to 440220325 its reverse (523022044), we get a palindrome (963242369).

The spelling of 440220325 in words is "four hundred forty million, two hundred twenty thousand, three hundred twenty-five".