260877640 has 32 divisors (see below), whose sum is σ = 587434680. Its totient is φ = 104269312.

The previous prime is 260877623. The next prime is 260877641. The reversal of 260877640 is 46778062.

260877640 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 4 ways, for example, as 166048996 + 94828644 = 12886^2 + 9738^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 260877593 and 260877602.

It is not an unprimeable number, because it can be changed into a prime (260877641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97764 + ... + 100396.

Almost surely, 2^260877640 is an apocalyptic number.

260877640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260877640 is an abundant number, since it is smaller than the sum of its proper divisors (326557040).

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

260877640 is a wasteful number, since it uses less digits than its factorization.

260877640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5121 (or 5117 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 260877640 is about 16151.7070305278. The cubic root of 260877640 is about 638.9677696458.

The spelling of 260877640 in words is "two hundred sixty million, eight hundred seventy-seven thousand, six hundred forty".