2001205260 has 36 divisors (see below), whose sum is σ = 6070323168. Its totient is φ = 533654688.

The previous prime is 2001205259. The next prime is 2001205309. The reversal of 2001205260 is 625021002.

2001205260 is a `hidden beast` number, since 20 + 0 + 120 + 526 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5558724 + ... + 5559083.

It is an arithmetic number, because the mean of its divisors is an integer number (168620088).

Almost surely, 2^2001205260 is an apocalyptic number.

2001205260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001205260 is an abundant number, since it is smaller than the sum of its proper divisors (4069117908).

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

2001205260 is a wasteful number, since it uses less digits than its factorization.

2001205260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11117822 (or 11117817 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2001205260 is about 44734.8327369177. The cubic root of 2001205260 is about 1260.1740878130.

Adding to 2001205260 its reverse (625021002), we get a palindrome (2626226262).

The spelling of 2001205260 in words is "two billion, one million, two hundred five thousand, two hundred sixty".