2012420030440 has 32 divisors (see below), whose sum is σ = 4527985445280. Its totient is φ = 804960834112.

The previous prime is 2012420030381. The next prime is 2012420030473. The reversal of 2012420030440 is 440300242102.

It is a happy number.

It is a super-2 number, since 2×2012420030440² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8755467 + ... + 8982373.

It is an arithmetic number, because the mean of its divisors is an integer number (141499545165).

Almost surely, 2^{2012420030440} is an apocalyptic number.

2012420030440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012420030440 is an abundant number, since it is smaller than the sum of its proper divisors (2515565414840).

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

2012420030440 is a wasteful number, since it uses less digits than its factorization.

2012420030440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448641 (or 448637 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 2012420030440 its reverse (440300242102), we get a palindrome (2452720272542).

The spelling of 2012420030440 in words is "two trillion, twelve billion, four hundred twenty million, thirty thousand, four hundred forty".