440240401144213 has 8 divisors (see below), whose sum is σ = 444764311671096. Its totient is φ = 435719727768000.

The previous prime is 440240401144153. The next prime is 440240401144223. The reversal of 440240401144213 is 312441104042044.

It can be written as a sum of positive squares in 4 ways, for example, as 283317503233444 + 156922897910769 = 16832038^2 + 12526887^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440240401144213 is a prime.

It is a super-2 number, since 2×440240401144213² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440240401144223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 809014278 + ... + 809558263.

It is an arithmetic number, because the mean of its divisors is an integer number (55595538958887).

Almost surely, 2^{440240401144213} is an apocalyptic number.

It is an amenable number.

440240401144213 is a deficient number, since it is larger than the sum of its proper divisors (4523910526883).

440240401144213 is a wasteful number, since it uses less digits than its factorization.

440240401144213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618575335.

The product of its (nonzero) digits is 49152, while the sum is 34.

Adding to 440240401144213 its reverse (312441104042044), we get a palindrome (752681505186257).

The spelling of 440240401144213 in words is "four hundred forty trillion, two hundred forty billion, four hundred one million, one hundred forty-four thousand, two hundred thirteen".