2000546640 has 80 divisors (see below), whose sum is σ = 6890779200. Its totient is φ = 533478528.

The previous prime is 2000546633. The next prime is 2000546641. The reversal of 2000546640 is 466450002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000546641) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 460930 + ... + 465249.

It is an arithmetic number, because the mean of its divisors is an integer number (86134740).

Almost surely, 2^2000546640 is an apocalyptic number.

2000546640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2000546640 is an abundant number, since it is smaller than the sum of its proper divisors (4890232560).

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

2000546640 is a wasteful number, since it uses less digits than its factorization.

2000546640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926201 (or 926189 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2000546640 is about 44727.4707534419. The cubic root of 2000546640 is about 1260.0358266457.

Adding to 2000546640 its reverse (466450002), we get a palindrome (2466996642).

The spelling of 2000546640 in words is "two billion, five hundred forty-six thousand, six hundred forty".