2012004420 has 24 divisors (see below), whose sum is σ = 5633612544. Its totient is φ = 536534496.

The previous prime is 2012004413. The next prime is 2012004431. The reversal of 2012004420 is 244002102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2012004420.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16766644 + ... + 16766763.

It is an arithmetic number, because the mean of its divisors is an integer number (234733856).

Almost surely, 2^2012004420 is an apocalyptic number.

2012004420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012004420 is an abundant number, since it is smaller than the sum of its proper divisors (3621608124).

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

2012004420 is a wasteful number, since it uses less digits than its factorization.

2012004420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33533419 (or 33533417 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2012004420 is about 44855.3722534994. The cubic root of 2012004420 is about 1262.4367934896.

Adding to 2012004420 its reverse (244002102), we get a palindrome (2256006522).

The spelling of 2012004420 in words is "two billion, twelve million, four thousand, four hundred twenty".