440142043313 has 32 divisors (see below), whose sum is σ = 522133724160. Its totient is φ = 363274560000.

The previous prime is 440142043309. The next prime is 440142043321. The reversal of 440142043313 is 313340241044.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 440142043313 - 2² = 440142043309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440142043303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3780968 + ... + 3895638.

It is an arithmetic number, because the mean of its divisors is an integer number (16316678880).

Almost surely, 2^440142043313 is an apocalyptic number.

It is an amenable number.

440142043313 is a deficient number, since it is larger than the sum of its proper divisors (81991680847).

440142043313 is a wasteful number, since it uses less digits than its factorization.

440142043313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114929.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 440142043313 its reverse (313340241044), we get a palindrome (753482284357).

The spelling of 440142043313 in words is "four hundred forty billion, one hundred forty-two million, forty-three thousand, three hundred thirteen".