260311212 has 48 divisors (see below), whose sum is σ = 771294720. Its totient is φ = 74374416.

The previous prime is 260311201. The next prime is 260311213. The reversal of 260311212 is 212113062.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (260311213) 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 15 ways as a sum of consecutive naturals, for example, 171408 + ... + 172919.

It is an arithmetic number, because the mean of its divisors is an integer number (16068640).

Almost surely, 2^260311212 is an apocalyptic number.

It is an amenable number.

260311212 is an abundant number, since it is smaller than the sum of its proper divisors (510983508).

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

260311212 is a wasteful number, since it uses less digits than its factorization.

260311212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344347 (or 344339 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 260311212 is about 16134.1628850089. The cubic root of 260311212 is about 638.5049837240.

Adding to 260311212 its reverse (212113062), we get a palindrome (472424274).

The spelling of 260311212 in words is "two hundred sixty million, three hundred eleven thousand, two hundred twelve".