2012003620 has 48 divisors (see below), whose sum is σ = 4640328000. Its totient is φ = 726715520.

The previous prime is 2012003603. The next prime is 2012003621. The reversal of 2012003620 is 263002102.

It is a junction number, because it is equal to n+sod(n) for n = 2012003594 and 2012003603.

It is not an unprimeable number, because it can be changed into a prime (2012003621) 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, 2091 + ... + 63469.

It is an arithmetic number, because the mean of its divisors is an integer number (96673500).

Almost surely, 2^2012003620 is an apocalyptic number.

2012003620 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 2012003620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2320164000).

2012003620 is an abundant number, since it is smaller than the sum of its proper divisors (2628324380).

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

2012003620 is a wasteful number, since it uses less digits than its factorization.

2012003620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61548 (or 61546 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2012003620 is about 44855.3633359490. The cubic root of 2012003620 is about 1262.4366261689.

Adding to 2012003620 its reverse (263002102), we get a palindrome (2275005722).

The spelling of 2012003620 in words is "two billion, twelve million, three thousand, six hundred twenty".