260664750 has 192 divisors, whose sum is σ = 766059840. Its totient is φ = 65577600.

The previous prime is 260664749. The next prime is 260664751. The reversal of 260664750 is 57466062.

260664750 is a `hidden beast` number, since 2 + 6 + 0 + 6 + 647 + 5 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (260664749) and next prime (260664751).

It is a super-2 number, since 2×260664750² = 135892223785125000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260664751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3570714 + ... + 3570786.

It is an arithmetic number, because the mean of its divisors is an integer number (3989895).

Almost surely, 2^260664750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260664750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383029920).

260664750 is an abundant number, since it is smaller than the sum of its proper divisors (505395090).

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

260664750 is a wasteful number, since it uses less digits than its factorization.

260664750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 260664750 is about 16145.1153603807. The cubic root of 260664750 is about 638.7939118074.

The spelling of 260664750 in words is "two hundred sixty million, six hundred sixty-four thousand, seven hundred fifty".