244288557 has 6 divisors (see below), whose sum is σ = 352861262. Its totient is φ = 162859032.

The previous prime is 244288519. The next prime is 244288579. The reversal of 244288557 is 755882442.

It can be written as a sum of positive squares in only one way, i.e., 243547236 + 741321 = 15606^2 + 861^2 .

It is a de Polignac number, because none of the positive numbers 2^k-244288557 is a prime.

It is a super-2 number, since 2×244288557² = 119353798162284498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244208557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13571578 + ... + 13571595.

Almost surely, 2^244288557 is an apocalyptic number.

It is an amenable number.

244288557 is a deficient number, since it is larger than the sum of its proper divisors (108572705).

244288557 is a wasteful number, since it uses less digits than its factorization.

244288557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27143179 (or 27143176 counting only the distinct ones).

The product of its digits is 716800, while the sum is 45.

The square root of 244288557 is about 15629.7331071263. The cubic root of 244288557 is about 625.1262098187.

The spelling of 244288557 in words is "two hundred forty-four million, two hundred eighty-eight thousand, five hundred fifty-seven".