260001500 has 96 divisors (see below), whose sum is σ = 635124672. Its totient is φ = 92160000.

The previous prime is 260001449. The next prime is 260001563. The reversal of 260001500 is 5100062.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224924 + ... + 226076.

It is an arithmetic number, because the mean of its divisors is an integer number (6615882).

Almost surely, 2^260001500 is an apocalyptic number.

260001500 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 260001500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317562336).

260001500 is an abundant number, since it is smaller than the sum of its proper divisors (375123172).

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

260001500 is a wasteful number, since it uses less digits than its factorization.

260001500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224 (or 1212 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 260001500 is about 16124.5620095555. The cubic root of 260001500 is about 638.2516572883.

Adding to 260001500 its reverse (5100062), we get a palindrome (265101562).

The spelling of 260001500 in words is "two hundred sixty million, one thousand, five hundred".