244000022405 has 8 divisors (see below), whose sum is σ = 292875572472. Its totient is φ = 195149654208.

The previous prime is 244000022401. The next prime is 244000022473. The reversal of 244000022405 is 504220000442.

It can be written as a sum of positive squares in 4 ways, for example, as 24771926881 + 219228095524 = 157391^2 + 468218^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 244000022405 - 2² = 244000022401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244000022401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6274142 + ... + 6312911.

It is an arithmetic number, because the mean of its divisors is an integer number (36609446559).

Almost surely, 2^244000022405 is an apocalyptic number.

It is an amenable number.

244000022405 is a deficient number, since it is larger than the sum of its proper divisors (48875550067).

244000022405 is a wasteful number, since it uses less digits than its factorization.

244000022405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12590935.

The product of its (nonzero) digits is 2560, while the sum is 23.

Adding to 244000022405 its reverse (504220000442), we get a palindrome (748220022847).

The spelling of 244000022405 in words is "two hundred forty-four billion, twenty-two thousand, four hundred five".