444140022397 has 2 divisors, whose sum is σ = 444140022398. Its totient is φ = 444140022396.

The previous prime is 444140022379. The next prime is 444140022401. The reversal of 444140022397 is 793220041444.

Together with previous prime (444140022379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 397764830596 + 46375191801 = 630686^2 + 215349^2 .

It is a cyclic number.

It is not a de Polignac number, because 444140022397 - 2³⁵ = 409780284029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444140022367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222070011198 + 222070011199.

It is an arithmetic number, because the mean of its divisors is an integer number (222070011199).

Almost surely, 2^444140022397 is an apocalyptic number.

It is an amenable number.

444140022397 is a deficient number, since it is larger than the sum of its proper divisors (1).

444140022397 is an equidigital number, since it uses as much as digits as its factorization.

444140022397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 444140022397 in words is "four hundred forty-four billion, one hundred forty million, twenty-two thousand, three hundred ninety-seven".