260261040 has 80 divisors (see below), whose sum is σ = 868881888. Its totient is φ = 64063488.

The previous prime is 260261039. The next prime is 260261047. The reversal of 260261040 is 40162062.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 260260998 and 260261016.

It is not an unprimeable number, because it can be changed into a prime (260261047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38589 + ... + 44828.

Almost surely, 2^260261040 is an apocalyptic number.

260261040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260261040 is an abundant number, since it is smaller than the sum of its proper divisors (608620848).

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

260261040 is a wasteful number, since it uses less digits than its factorization.

260261040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83446 (or 83440 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 260261040 is about 16132.6079726745. The cubic root of 260261040 is about 638.4639595845.

The spelling of 260261040 in words is "two hundred sixty million, two hundred sixty-one thousand, forty".