260198644 has 12 divisors (see below), whose sum is σ = 456662304. Its totient is φ = 129723704.

The previous prime is 260198639. The next prime is 260198657. The reversal of 260198644 is 446891062.

It is a junction number, because it is equal to n+sod(n) for n = 260198597 and 260198606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92344 + ... + 95119.

It is an arithmetic number, because the mean of its divisors is an integer number (38055192).

Almost surely, 2^260198644 is an apocalyptic number.

It is an amenable number.

260198644 is a deficient number, since it is larger than the sum of its proper divisors (196463660).

260198644 is a wasteful number, since it uses less digits than its factorization.

260198644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187814 (or 187812 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 260198644 is about 16130.6740094765. The cubic root of 260198644 is about 638.4129328906.

The spelling of 260198644 in words is "two hundred sixty million, one hundred ninety-eight thousand, six hundred forty-four".