2001270465 has 24 divisors (see below), whose sum is σ = 3507851880. Its totient is φ = 1055349504.

The previous prime is 2001270449. The next prime is 2001270487. The reversal of 2001270465 is 5640721002.

It can be written as a sum of positive squares in 4 ways, for example, as 349091856 + 1652178609 = 18684^2 + 40647^2 .

It is not a de Polignac number, because 2001270465 - 2⁴ = 2001270449 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 245842 + ... + 253851.

It is an arithmetic number, because the mean of its divisors is an integer number (146160495).

Almost surely, 2^2001270465 is an apocalyptic number.

It is an amenable number.

2001270465 is a deficient number, since it is larger than the sum of its proper divisors (1506581415).

2001270465 is a wasteful number, since it uses less digits than its factorization.

2001270465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499793 (or 499790 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2001270465 is about 44735.5615254799. The cubic root of 2001270465 is about 1260.1877743583.

Adding to 2001270465 its reverse (5640721002), we get a palindrome (7641991467).

The spelling of 2001270465 in words is "two billion, one million, two hundred seventy thousand, four hundred sixty-five".