260731000 has 64 divisors (see below), whose sum is σ = 615214080. Its totient is φ = 103420800.

The previous prime is 260730991. The next prime is 260731001. The reversal of 260731000 is 137062.

260731000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×260731000² = 135961308722000000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260731001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125974 + ... + 128026.

It is an arithmetic number, because the mean of its divisors is an integer number (9612720).

Almost surely, 2^260731000 is an apocalyptic number.

260731000 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 260731000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307607040).

260731000 is an abundant number, since it is smaller than the sum of its proper divisors (354483080).

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

260731000 is a wasteful number, since it uses less digits than its factorization.

260731000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201 (or 2187 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 260731000 is about 16147.1669341715. The cubic root of 260731000 is about 638.8480253917.

Adding to 260731000 its reverse (137062), we get a palindrome (260868062).

The spelling of 260731000 in words is "two hundred sixty million, seven hundred thirty-one thousand".