2001280546 has 16 divisors (see below), whose sum is σ = 3147982200. Its totient is φ = 952898688.

The previous prime is 2001280543. The next prime is 2001280607. The reversal of 2001280546 is 6450821002.

It can be written as a sum of positive squares in 4 ways, for example, as 1818084321 + 183196225 = 42639^2 + 13535^2 .

It is not an unprimeable number, because it can be changed into a prime (2001280543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232101 + ... + 240568.

Almost surely, 2^2001280546 is an apocalyptic number.

2001280546 is a deficient number, since it is larger than the sum of its proper divisors (1146701654).

2001280546 is a wasteful number, since it uses less digits than its factorization.

2001280546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472773.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 2001280546 is about 44735.6741985633. The cubic root of 2001280546 is about 1260.1898903361.

The spelling of 2001280546 in words is "two billion, one million, two hundred eighty thousand, five hundred forty-six".