260440220 has 24 divisors (see below), whose sum is σ = 575710800. Its totient is φ = 98692992.

The previous prime is 260440199. The next prime is 260440237. The reversal of 260440220 is 22044062.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 260440192 and 260440201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342305 + ... + 343064.

It is an arithmetic number, because the mean of its divisors is an integer number (23987950).

Almost surely, 2^260440220 is an apocalyptic number.

260440220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260440220 is an abundant number, since it is smaller than the sum of its proper divisors (315270580).

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

260440220 is a wasteful number, since it uses less digits than its factorization.

260440220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685397 (or 685395 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 260440220 is about 16138.1603660392. The cubic root of 260440220 is about 638.6104454985.

Adding to 260440220 its reverse (22044062), we get a palindrome (282484282).

It can be divided in two parts, 2604 and 40220, that added together give a palindrome (42824).

The spelling of 260440220 in words is "two hundred sixty million, four hundred forty thousand, two hundred twenty".