244064561 has 12 divisors (see below), whose sum is σ = 269914752. Its totient is φ = 220489776.

The previous prime is 244064549. The next prime is 244064591. The reversal of 244064561 is 165460442.

It is not a de Polignac number, because 244064561 - 2¹⁰ = 244063537 is a prime.

It is a super-2 number, since 2×244064561² = 119135019872245442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244064521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7421 + ... + 23306.

It is an arithmetic number, because the mean of its divisors is an integer number (22492896).

Almost surely, 2^244064561 is an apocalyptic number.

It is an amenable number.

244064561 is a deficient number, since it is larger than the sum of its proper divisors (25850191).

244064561 is a wasteful number, since it uses less digits than its factorization.

244064561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30800 (or 30787 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 244064561 is about 15622.5657623836. The cubic root of 244064561 is about 624.9350853113.

The spelling of 244064561 in words is "two hundred forty-four million, sixty-four thousand, five hundred sixty-one".