260343720 has 320 divisors, whose sum is σ = 1078197120. Its totient is φ = 54867456.

The previous prime is 260343691. The next prime is 260343731. The reversal of 260343720 is 27343062.

260343720 is a `hidden beast` number, since 2 + 603 + 4 + 37 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 79 ways as a sum of consecutive naturals, for example, 294399 + ... + 295281.

It is an arithmetic number, because the mean of its divisors is an integer number (3369366).

Almost surely, 2^260343720 is an apocalyptic number.

260343720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260343720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (539098560).

260343720 is an abundant number, since it is smaller than the sum of its proper divisors (817853400).

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

260343720 is a wasteful number, since it uses less digits than its factorization.

260343720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926 (or 913 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 260343720 is about 16135.1702810971. The cubic root of 260343720 is about 638.5315617264.

Adding to 260343720 its reverse (27343062), we get a palindrome (287686782).

The spelling of 260343720 in words is "two hundred sixty million, three hundred forty-three thousand, seven hundred twenty".