260730720 has 72 divisors (see below), whose sum is σ = 889748496. Its totient is φ = 69527808.

The previous prime is 260730719. The next prime is 260730733. The reversal of 260730720 is 27037062.

260730720 is a `hidden beast` number, since 2 + 607 + 30 + 7 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89092 + ... + 91971.

It is an arithmetic number, because the mean of its divisors is an integer number (12357618).

Almost surely, 2^260730720 is an apocalyptic number.

260730720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260730720 is an abundant number, since it is smaller than the sum of its proper divisors (629017776).

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

260730720 is a wasteful number, since it uses less digits than its factorization.

260730720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181084 (or 181073 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 260730720 is about 16147.1582639175. The cubic root of 260730720 is about 638.8477967046.

Adding to 260730720 its reverse (27037062), we get a palindrome (287767782).

The spelling of 260730720 in words is "two hundred sixty million, seven hundred thirty thousand, seven hundred twenty".