20200044040400 has 60 divisors (see below), whose sum is σ = 55463549501472. Its totient is φ = 6925729384320.

The previous prime is 20200044040357. The next prime is 20200044040409. The reversal of 20200044040400 is 404044000202.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200044040409) 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 11 ways as a sum of consecutive naturals, for example, 3607147922 + ... + 3607153521.

Almost surely, 2^{20200044040400} is an apocalyptic number.

20200044040400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200044040400 is an abundant number, since it is smaller than the sum of its proper divisors (35263505461072).

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

20200044040400 is a wasteful number, since it uses less digits than its factorization.

20200044040400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7214301468 (or 7214301457 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 20200044040400 its reverse (404044000202), we get a palindrome (20604088040602).

The spelling of 20200044040400 in words is "twenty trillion, two hundred billion, forty-four million, forty thousand, four hundred".