244642986 has 36 divisors (see below), whose sum is σ = 616602402. Its totient is φ = 69897744.

The previous prime is 244642967. The next prime is 244642997. The reversal of 244642986 is 689246442.

It can be written as a sum of positive squares in only one way, i.e., 150921225 + 93721761 = 12285^2 + 9681^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 137805 + ... + 139568.

Almost surely, 2^244642986 is an apocalyptic number.

244642986 is an abundant number, since it is smaller than the sum of its proper divisors (371959416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

244642986 is a wasteful number, since it uses less digits than its factorization.

244642986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277395 (or 277385 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The square root of 244642986 is about 15641.0672909492. The cubic root of 244642986 is about 625.4283876940.

The spelling of 244642986 in words is "two hundred forty-four million, six hundred forty-two thousand, nine hundred eighty-six".