260897240 has 32 divisors (see below), whose sum is σ = 605957760. Its totient is φ = 100992000.

The previous prime is 260897191. The next prime is 260897267. The reversal of 260897240 is 42798062.

It is a junction number, because it is equal to n+sod(n) for n = 260897194 and 260897203.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 103961 + ... + 106440.

It is an arithmetic number, because the mean of its divisors is an integer number (18936180).

Almost surely, 2^260897240 is an apocalyptic number.

260897240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260897240 is an abundant number, since it is smaller than the sum of its proper divisors (345060520).

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

260897240 is a wasteful number, since it uses less digits than its factorization.

260897240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210443 (or 210439 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 260897240 is about 16152.3137661451. The cubic root of 260897240 is about 638.9837713426.

The spelling of 260897240 in words is "two hundred sixty million, eight hundred ninety-seven thousand, two hundred forty".