440622225893 has 2 divisors, whose sum is σ = 440622225894. Its totient is φ = 440622225892.

The previous prime is 440622225881. The next prime is 440622225913. The reversal of 440622225893 is 398522226044.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 391534278529 + 49087947364 = 625727^2 + 221558^2 .

It is a cyclic number.

It is not a de Polignac number, because 440622225893 - 2⁴ = 440622225877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440622225793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220311112946 + 220311112947.

It is an arithmetic number, because the mean of its divisors is an integer number (220311112947).

Almost surely, 2^440622225893 is an apocalyptic number.

It is an amenable number.

440622225893 is a deficient number, since it is larger than the sum of its proper divisors (1).

440622225893 is an equidigital number, since it uses as much as digits as its factorization.

440622225893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1658880, while the sum is 47.

The spelling of 440622225893 in words is "four hundred forty billion, six hundred twenty-two million, two hundred twenty-five thousand, eight hundred ninety-three".