440222312109 has 4 divisors (see below), whose sum is σ = 586963082816. Its totient is φ = 293481541404.

The previous prime is 440222312107. The next prime is 440222312111. The reversal of 440222312109 is 901213222044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (440222312107) and next prime (440222312111).

It is not a de Polignac number, because 440222312109 - 2¹ = 440222312107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440222312107) 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, 73370385349 + ... + 73370385354.

It is an arithmetic number, because the mean of its divisors is an integer number (146740770704).

Almost surely, 2^440222312109 is an apocalyptic number.

It is an amenable number.

440222312109 is a deficient number, since it is larger than the sum of its proper divisors (146740770707).

440222312109 is a wasteful number, since it uses less digits than its factorization.

440222312109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146740770706.

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 440222312109 in words is "four hundred forty billion, two hundred twenty-two million, three hundred twelve thousand, one hundred nine".