20044040200440 has 32 divisors (see below), whose sum is σ = 60132120601680. Its totient is φ = 5345077386752.

The previous prime is 20044040200433. The next prime is 20044040200517. The reversal of 20044040200440 is 4400204044002.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 20044040200440.

It is a congruent number.

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, 83516834049 + ... + 83516834288.

Almost surely, 2^{20044040200440} is an apocalyptic number.

20044040200440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20044040200440 is an abundant number, since it is smaller than the sum of its proper divisors (40088080401240).

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

20044040200440 is a wasteful number, since it uses less digits than its factorization.

20044040200440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167033668351 (or 167033668347 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 20044040200440 its reverse (4400204044002), we get a palindrome (24444244244442).

The spelling of 20044040200440 in words is "twenty trillion, forty-four billion, forty million, two hundred thousand, four hundred forty".