244680681 has 16 divisors (see below), whose sum is σ = 376541568. Its totient is φ = 138432000.

The previous prime is 244680673. The next prime is 244680691. The reversal of 244680681 is 186086442.

It is not a de Polignac number, because 244680681 - 2³ = 244680673 is a prime.

It is a super-2 number, since 2×244680681² = 119737271309247522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (244680641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55560 + ... + 59801.

It is an arithmetic number, because the mean of its divisors is an integer number (23533848).

Almost surely, 2^244680681 is an apocalyptic number.

244680681 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

244680681 is a deficient number, since it is larger than the sum of its proper divisors (131860887).

244680681 is a wasteful number, since it uses less digits than its factorization.

244680681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115472.

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 244680681 is about 15642.2722454252. The cubic root of 244680681 is about 625.4605083946.

The spelling of 244680681 in words is "two hundred forty-four million, six hundred eighty thousand, six hundred eighty-one".