244404001 has 4 divisors (see below), whose sum is σ = 244436292. Its totient is φ = 244371712.

The previous prime is 244403987. The next prime is 244404023. The reversal of 244404001 is 100404442.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 100404442 = 2 ⋅50202221.

It can be written as a sum of positive squares in 2 ways, for example, as 122323600 + 122080401 = 11060^2 + 11049^2 .

It is a cyclic number.

It is not a de Polignac number, because 244404001 - 2¹¹ = 244401953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 244404001.

It is not an unprimeable number, because it can be changed into a prime (244404091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2025 + ... + 22201.

It is an arithmetic number, because the mean of its divisors is an integer number (61109073).

Almost surely, 2^244404001 is an apocalyptic number.

It is an amenable number.

244404001 is a deficient number, since it is larger than the sum of its proper divisors (32291).

244404001 is a wasteful number, since it uses less digits than its factorization.

244404001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32290.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 244404001 is about 15633.4257602101. The cubic root of 244404001 is about 625.2246667501.

Adding to 244404001 its reverse (100404442), we get a palindrome (344808443).

It can be divided in two parts, 24440 and 4001, that added together give a triangular number (28441 = T₂₃₈).

The spelling of 244404001 in words is "two hundred forty-four million, four hundred four thousand, one".