260978850 has 108 divisors (see below), whose sum is σ = 770860818. Its totient is φ = 63254400.

The previous prime is 260978843. The next prime is 260978897. The reversal of 260978850 is 58879062.

260978850 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 233447841 + 27531009 = 15279^2 + 5247^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 260978796 and 260978805.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 52054 + ... + 56846.

Almost surely, 2^260978850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260978850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385430409).

260978850 is an abundant number, since it is smaller than the sum of its proper divisors (509881968).

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

260978850 is a wasteful number, since it uses less digits than its factorization.

260978850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4833 (or 4814 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 260978850 is about 16154.8398320751. The cubic root of 260978850 is about 639.0503902014.

The spelling of 260978850 in words is "two hundred sixty million, nine hundred seventy-eight thousand, eight hundred fifty".