244780531009 has 45 divisors (see below), whose sum is σ = 299197310433. Its totient is φ = 200232476136.

The previous prime is 244780531003. The next prime is 244780531019. The reversal of 244780531009 is 900135087442.

The square root of 244780531009 is 494753.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 244780531009 - 2³ = 244780531001 is a prime.

It is a super-2 number, since 2×244780531009² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (244780531001) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 557586412 + ... + 557586850.

Almost surely, 2^244780531009 is an apocalyptic number.

244780531009 is the 494753-rd square number.

244780531009 is the 247377-th centered octagonal number.

It is an amenable number.

244780531009 is a deficient number, since it is larger than the sum of its proper divisors (54416779424).

244780531009 is an frugal number, since it uses more digits than its factorization.

244780531009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 244780531009 in words is "two hundred forty-four billion, seven hundred eighty million, five hundred thirty-one thousand, nine".