440340002213 has 6 divisors (see below), whose sum is σ = 447010338726. Its totient is φ = 433767758952.

The previous prime is 440340002149. The next prime is 440340002251. The reversal of 440340002213 is 312200043044.

It can be written as a sum of positive squares in only one way, i.e., 436950084484 + 3389917729 = 661022^2 + 58223^2 .

It is not a de Polignac number, because 440340002213 - 2⁶ = 440340002149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440340202213) 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, 49042070 + ... + 49051047.

It is an arithmetic number, because the mean of its divisors is an integer number (74501723121).

Almost surely, 2^440340002213 is an apocalyptic number.

It is an amenable number.

440340002213 is a deficient number, since it is larger than the sum of its proper divisors (6670336513).

440340002213 is an frugal number, since it uses more digits than its factorization.

440340002213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98093251 (or 98093184 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 440340002213 its reverse (312200043044), we get a palindrome (752540045257).

The spelling of 440340002213 in words is "four hundred forty billion, three hundred forty million, two thousand, two hundred thirteen".