244704681 has 36 divisors (see below), whose sum is σ = 404416012. Its totient is φ = 141709824.

The previous prime is 244704671. The next prime is 244704689. The reversal of 244704681 is 186407442.

It can be written as a sum of positive squares in 6 ways, for example, as 8037225 + 236667456 = 2835^2 + 15384^2 .

It is not a de Polignac number, because 244704681 - 2¹⁵ = 244671913 is a prime.

It is a super-2 number, since 2×244704681² = 119760761806623522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244704689) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 30195 + ... + 37431.

Almost surely, 2^244704681 is an apocalyptic number.

It is an amenable number.

244704681 is a deficient number, since it is larger than the sum of its proper divisors (159711331).

244704681 is a wasteful number, since it uses less digits than its factorization.

244704681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7290 (or 7270 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 244704681 is about 15643.0393785862. The cubic root of 244704681 is about 625.4809575794.

The spelling of 244704681 in words is "two hundred forty-four million, seven hundred four thousand, six hundred eighty-one".