440345053 has 4 divisors (see below), whose sum is σ = 446547168. Its totient is φ = 434142940.

The previous prime is 440345027. The next prime is 440345057. The reversal of 440345053 is 350543044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440345053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440345057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3100951 + ... + 3101092.

It is an arithmetic number, because the mean of its divisors is an integer number (111636792).

Almost surely, 2^440345053 is an apocalyptic number.

It is an amenable number.

440345053 is a deficient number, since it is larger than the sum of its proper divisors (6202115).

440345053 is an equidigital number, since it uses as much as digits as its factorization.

440345053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6202114.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 440345053 is about 20984.4002296944. The cubic root of 440345053 is about 760.7892614380.

Adding to 440345053 its reverse (350543044), we get a palindrome (790888097).

The spelling of 440345053 in words is "four hundred forty million, three hundred forty-five thousand, fifty-three".