260545530 has 64 divisors (see below), whose sum is σ = 717631488. Its totient is φ = 59304000.

The previous prime is 260545511. The next prime is 260545531. The reversal of 260545530 is 35545062.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (260545531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50239 + ... + 55181.

It is an arithmetic number, because the mean of its divisors is an integer number (11212992).

Almost surely, 2^260545530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260545530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358815744).

260545530 is an abundant number, since it is smaller than the sum of its proper divisors (457085958).

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

260545530 is a wasteful number, since it uses less digits than its factorization.

260545530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5211.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 260545530 is about 16141.4227997410. The cubic root of 260545530 is about 638.6965087590.

The spelling of 260545530 in words is "two hundred sixty million, five hundred forty-five thousand, five hundred thirty".