260440220424 has 32 divisors (see below), whose sum is σ = 673552296000. Its totient is φ = 83819840832.

The previous prime is 260440220329. The next prime is 260440220441. The reversal of 260440220424 is 424022044062.

It is a junction number, because it is equal to n+sod(n) for n = 260440220391 and 260440220400.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 187097164 + ... + 187098555.

It is an arithmetic number, because the mean of its divisors is an integer number (21048509250).

Almost surely, 2^260440220424 is an apocalyptic number.

260440220424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

260440220424 is an abundant number, since it is smaller than the sum of its proper divisors (413112075576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

260440220424 is a wasteful number, since it uses less digits than its factorization.

260440220424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374195757 (or 374195753 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 260440220424 its reverse (424022044062), we get a palindrome (684462264486).

The spelling of 260440220424 in words is "two hundred sixty billion, four hundred forty million, two hundred twenty thousand, four hundred twenty-four".