20202400044 has 72 divisors (see below), whose sum is σ = 54139333248. Its totient is φ = 6340757760.

The previous prime is 20202400033. The next prime is 20202400061. The reversal of 20202400044 is 44000420202.

20202400044 is a `hidden beast` number, since 20 + 202 + 400 + 0 + 44 = 666.

It is a super-2 number, since 2×20202400044² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 203337 + ... + 285920.

It is an arithmetic number, because the mean of its divisors is an integer number (751935184).

Almost surely, 2^20202400044 is an apocalyptic number.

It is an amenable number.

20202400044 is an abundant number, since it is smaller than the sum of its proper divisors (33936933204).

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

20202400044 is a wasteful number, since it uses less digits than its factorization.

20202400044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489335 (or 489330 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 20202400044 its reverse (44000420202), we get a palindrome (64202820246).

The spelling of 20202400044 in words is "twenty billion, two hundred two million, four hundred thousand, forty-four".