440243013321 has 6 divisors (see below), whose sum is σ = 635906574810. Its totient is φ = 293495342208.

The previous prime is 440243013313. The next prime is 440243013341. The reversal of 440243013321 is 123310342044.

440243013321 is a `hidden beast` number, since 4 + 4 + 0 + 24 + 301 + 332 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 430860960000 + 9382053321 = 656400^2 + 96861^2 .

It is not a de Polignac number, because 440243013321 - 2³ = 440243013313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (440243013341) 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, 24457945176 + ... + 24457945193.

It is an arithmetic number, because the mean of its divisors is an integer number (105984429135).

Almost surely, 2^440243013321 is an apocalyptic number.

It is an amenable number.

440243013321 is a deficient number, since it is larger than the sum of its proper divisors (195663561489).

440243013321 is a wasteful number, since it uses less digits than its factorization.

440243013321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48915890375 (or 48915890372 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 440243013321 its reverse (123310342044), we get a palindrome (563553355365).

The spelling of 440243013321 in words is "four hundred forty billion, two hundred forty-three million, thirteen thousand, three hundred twenty-one".