440340210501223 has 4 divisors (see below), whose sum is σ = 440340500862640. Its totient is φ = 440339920139808.

The previous prime is 440340210501209. The next prime is 440340210501229. The reversal of 440340210501223 is 322105012043044.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440340210501223 is a prime.

It is a super-2 number, since 2×440340210501223² (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 (440340210501229) 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, 142893915 + ... + 145942972.

It is an arithmetic number, because the mean of its divisors is an integer number (110085125215660).

Almost surely, 2^{440340210501223} is an apocalyptic number.

440340210501223 is a deficient number, since it is larger than the sum of its proper divisors (290361417).

440340210501223 is a wasteful number, since it uses less digits than its factorization.

440340210501223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290361416.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 440340210501223 its reverse (322105012043044), we get a palindrome (762445222544267).

The spelling of 440340210501223 in words is "four hundred forty trillion, three hundred forty billion, two hundred ten million, five hundred one thousand, two hundred twenty-three".