260878660 has 48 divisors (see below), whose sum is σ = 627137280. Its totient is φ = 89297280.

The previous prime is 260878633. The next prime is 260878661. The reversal of 260878660 is 66878062.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (260878661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116350 + ... + 118570.

It is an arithmetic number, because the mean of its divisors is an integer number (13065360).

Almost surely, 2^260878660 is an apocalyptic number.

260878660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260878660 is an abundant number, since it is smaller than the sum of its proper divisors (366258620).

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

260878660 is a wasteful number, since it uses less digits than its factorization.

260878660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076 (or 3074 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 260878660 is about 16151.7386061068. The cubic root of 260878660 is about 638.9686024070.

The spelling of 260878660 in words is "two hundred sixty million, eight hundred seventy-eight thousand, six hundred sixty".