260644332 has 48 divisors (see below), whose sum is σ = 662346720. Its totient is φ = 79292928.

The previous prime is 260644273. The next prime is 260644361. The reversal of 260644332 is 233446062.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 260644332.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4498 + ... + 23270.

It is an arithmetic number, because the mean of its divisors is an integer number (13798890).

Almost surely, 2^260644332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260644332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331173360).

260644332 is an abundant number, since it is smaller than the sum of its proper divisors (401702388).

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

260644332 is a wasteful number, since it uses less digits than its factorization.

260644332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18882 (or 18880 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 260644332 is about 16144.4830205244. The cubic root of 260644332 is about 638.7772323565. Note that the first 3 decimals are identical.

The spelling of 260644332 in words is "two hundred sixty million, six hundred forty-four thousand, three hundred thirty-two".