260606500 has 144 divisors (see below), whose sum is σ = 723026304. Its totient is φ = 81144000.

The previous prime is 260606477. The next prime is 260606509. The reversal of 260606500 is 5606062.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (260606509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 269017 + ... + 269983.

It is an arithmetic number, because the mean of its divisors is an integer number (5021016).

Almost surely, 2^260606500 is an apocalyptic number.

260606500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260606500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361513152).

260606500 is an abundant number, since it is smaller than the sum of its proper divisors (462419804).

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

260606500 is a wasteful number, since it uses less digits than its factorization.

260606500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011 (or 992 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 260606500 is about 16143.3113084026. The cubic root of 260606500 is about 638.7463251180.

The spelling of 260606500 in words is "two hundred sixty million, six hundred six thousand, five hundred".