244828681 has 4 divisors (see below), whose sum is σ = 244998864. Its totient is φ = 244658500.

The previous prime is 244828657. The next prime is 244828691. The reversal of 244828681 is 186828442.

244828681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 244828681 - 2¹⁹ = 244304393 is a prime.

It is a super-2 number, since 2×244828681² = 119882166080399522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244828691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82915 + ... + 85816.

It is an arithmetic number, because the mean of its divisors is an integer number (61249716).

Almost surely, 2^244828681 is an apocalyptic number.

It is an amenable number.

244828681 is a deficient number, since it is larger than the sum of its proper divisors (170183).

244828681 is a wasteful number, since it uses less digits than its factorization.

244828681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170182.

The product of its digits is 196608, while the sum is 43.

The square root of 244828681 is about 15647.0023007604. The cubic root of 244828681 is about 625.5865904065.

The spelling of 244828681 in words is "two hundred forty-four million, eight hundred twenty-eight thousand, six hundred eighty-one".