440342323331 has 4 divisors (see below), whose sum is σ = 447805752600. Its totient is φ = 432878894064.

The previous prime is 440342323327. The next prime is 440342323349. The reversal of 440342323331 is 133323243044.

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

It is a cyclic number.

It is not a de Polignac number, because 440342323331 - 2² = 440342323327 is a prime.

It is a super-2 number, since 2×440342323331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440342322331) 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, 3731714546 + ... + 3731714663.

It is an arithmetic number, because the mean of its divisors is an integer number (111951438150).

Almost surely, 2^440342323331 is an apocalyptic number.

440342323331 is a deficient number, since it is larger than the sum of its proper divisors (7463429269).

440342323331 is an equidigital number, since it uses as much as digits as its factorization.

440342323331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7463429268.

The product of its (nonzero) digits is 62208, while the sum is 32.

Adding to 440342323331 its reverse (133323243044), we get a palindrome (573665566375).

The spelling of 440342323331 in words is "four hundred forty billion, three hundred forty-two million, three hundred twenty-three thousand, three hundred thirty-one".