2012443020 has 144 divisors (see below), whose sum is σ = 7040953920. Its totient is φ = 455735808.

The previous prime is 2012443003. The next prime is 2012443033. The reversal of 2012443020 is 203442102.

2012443020 is a `hidden beast` number, since 201 + 2 + 443 + 0 + 20 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 2012442984 and 2012443002.

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 47 ways as a sum of consecutive naturals, for example, 130014 + ... + 144666.

Almost surely, 2^2012443020 is an apocalyptic number.

2012443020 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 2012443020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3520476960).

2012443020 is an abundant number, since it is smaller than the sum of its proper divisors (5028510900).

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

2012443020 is a wasteful number, since it uses less digits than its factorization.

2012443020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14784 (or 14779 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2012443020 is about 44860.2610335696. The cubic root of 2012443020 is about 1262.5285203504.

Adding to 2012443020 its reverse (203442102), we get a palindrome (2215885122).

The spelling of 2012443020 in words is "two billion, twelve million, four hundred forty-three thousand, twenty".