260822644 has 6 divisors (see below), whose sum is σ = 456439634. Its totient is φ = 130411320.

The previous prime is 260822609. The next prime is 260822647. The reversal of 260822644 is 446228062.

It can be written as a sum of positive squares in only one way, i.e., 260822500 + 144 = 16150^2 + 12^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260822647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32602827 + ... + 32602834.

Almost surely, 2^260822644 is an apocalyptic number.

It is an amenable number.

260822644 is a deficient number, since it is larger than the sum of its proper divisors (195616990).

260822644 is a wasteful number, since it uses less digits than its factorization.

260822644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65205665 (or 65205663 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 260822644 is about 16150.0044582037. The cubic root of 260822644 is about 638.9228659110.

It can be divided in two parts, 2608 and 22644, that added together give a palindrome (25252).

The spelling of 260822644 in words is "two hundred sixty million, eight hundred twenty-two thousand, six hundred forty-four".