260755220 has 48 divisors (see below), whose sum is σ = 607521600. Its totient is φ = 93208320.

The previous prime is 260755219. The next prime is 260755237. The reversal of 260755220 is 22557062.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2936 + ... + 23024.

It is an arithmetic number, because the mean of its divisors is an integer number (12656700).

Almost surely, 2^260755220 is an apocalyptic number.

260755220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260755220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303760800).

260755220 is an abundant number, since it is smaller than the sum of its proper divisors (346766380).

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

260755220 is a wasteful number, since it uses less digits than its factorization.

260755220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20168 (or 20166 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 260755220 is about 16147.9168935191. The cubic root of 260755220 is about 638.8678062132.

The spelling of 260755220 in words is "two hundred sixty million, seven hundred fifty-five thousand, two hundred twenty".