244440426473 has 2 divisors, whose sum is σ = 244440426474. Its totient is φ = 244440426472.

The previous prime is 244440426443. The next prime is 244440426487. The reversal of 244440426473 is 374624044442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 233446484569 + 10993941904 = 483163^2 + 104852^2 .

It is a cyclic number.

It is not a de Polignac number, because 244440426473 - 2¹² = 244440422377 is a prime.

It is a super-2 number, since 2×244440426473² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (244440426443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122220213236 + 122220213237.

It is an arithmetic number, because the mean of its divisors is an integer number (122220213237).

Almost surely, 2^244440426473 is an apocalyptic number.

It is an amenable number.

244440426473 is a deficient number, since it is larger than the sum of its proper divisors (1).

244440426473 is an equidigital number, since it uses as much as digits as its factorization.

244440426473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2064384, while the sum is 44.

The spelling of 244440426473 in words is "two hundred forty-four billion, four hundred forty million, four hundred twenty-six thousand, four hundred seventy-three".