244140404509 has 2 divisors, whose sum is σ = 244140404510. Its totient is φ = 244140404508.

The previous prime is 244140404479. The next prime is 244140404527. The reversal of 244140404509 is 905404041442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243927332100 + 213072409 = 493890^2 + 14597^2 .

It is a cyclic number.

It is not a de Polignac number, because 244140404509 - 2¹⁷ = 244140273437 is a prime.

It is a super-2 number, since 2×244140404509² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244140404549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122070202254 + 122070202255.

It is an arithmetic number, because the mean of its divisors is an integer number (122070202255).

Almost surely, 2^244140404509 is an apocalyptic number.

It is an amenable number.

244140404509 is a deficient number, since it is larger than the sum of its proper divisors (1).

244140404509 is an equidigital number, since it uses as much as digits as its factorization.

244140404509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 244140404509 in words is "two hundred forty-four billion, one hundred forty million, four hundred four thousand, five hundred nine".