260911100 has 72 divisors (see below), whose sum is σ = 592128768. Its totient is φ = 99691200.

The previous prime is 260911099. The next prime is 260911117. The reversal of 260911100 is 1119062.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 201455 + ... + 202745.

Almost surely, 2^260911100 is an apocalyptic number.

260911100 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 260911100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296064384).

260911100 is an abundant number, since it is smaller than the sum of its proper divisors (331217668).

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

260911100 is a wasteful number, since it uses less digits than its factorization.

260911100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395 (or 1388 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 260911100 is about 16152.7428011468. The cubic root of 260911100 is about 638.9950863444.

The spelling of 260911100 in words is "two hundred sixty million, nine hundred eleven thousand, one hundred".