440531045 has 4 divisors (see below), whose sum is σ = 528637260. Its totient is φ = 352424832.

The previous prime is 440531041. The next prime is 440531051. The reversal of 440531045 is 540135044.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 74114881 + 366416164 = 8609^2 + 19142^2 .

It is a cyclic number.

It is not a de Polignac number, because 440531045 - 2² = 440531041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440531041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44053100 + ... + 44053109.

It is an arithmetic number, because the mean of its divisors is an integer number (132159315).

Almost surely, 2^440531045 is an apocalyptic number.

It is an amenable number.

440531045 is a deficient number, since it is larger than the sum of its proper divisors (88106215).

440531045 is an equidigital number, since it uses as much as digits as its factorization.

440531045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88106214.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 440531045 is about 20988.8314348370. The cubic root of 440531045 is about 760.8963598734.

Adding to 440531045 its reverse (540135044), we get a palindrome (980666089).

The spelling of 440531045 in words is "four hundred forty million, five hundred thirty-one thousand, forty-five".