260231720 has 32 divisors (see below), whose sum is σ = 669168000. Its totient is φ = 89222208.

The previous prime is 260231687. The next prime is 260231731. The reversal of 260231720 is 27132062.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464420 + ... + 464979.

It is an arithmetic number, because the mean of its divisors is an integer number (20911500).

Almost surely, 2^260231720 is an apocalyptic number.

260231720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260231720 is an abundant number, since it is smaller than the sum of its proper divisors (408936280).

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

260231720 is a wasteful number, since it uses less digits than its factorization.

260231720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929417 (or 929413 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 260231720 is about 16131.6992285376. The cubic root of 260231720 is about 638.4399830591.

Adding to 260231720 its reverse (27132062), we get a palindrome (287363782).

The spelling of 260231720 in words is "two hundred sixty million, two hundred thirty-one thousand, seven hundred twenty".