260564028 has 12 divisors (see below), whose sum is σ = 607982760. Its totient is φ = 86854672.

The previous prime is 260564023. The next prime is 260564039. The reversal of 260564028 is 820465062.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×260564028² = 135787225375169568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 260564028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260564023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10856823 + ... + 10856846.

It is an arithmetic number, because the mean of its divisors is an integer number (50665230).

Almost surely, 2^260564028 is an apocalyptic number.

It is an amenable number.

260564028 is an abundant number, since it is smaller than the sum of its proper divisors (347418732).

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

260564028 is a wasteful number, since it uses less digits than its factorization.

260564028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21713676 (or 21713674 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 260564028 is about 16141.9957873864. The cubic root of 260564028 is about 638.7116236200.

The spelling of 260564028 in words is "two hundred sixty million, five hundred sixty-four thousand, twenty-eight".