20403040033044 has 96 divisors (see below), whose sum is σ = 53671808467200. Its totient is φ = 6785520009408.

The previous prime is 20403040033039. The next prime is 20403040033099. The reversal of 20403040033044 is 44033004030402.

20403040033044 is a `hidden beast` number, since 20 + 4 + 0 + 304 + 0 + 0 + 330 + 4 + 4 = 666.

It is a super-2 number, since 2×20403040033044² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 20403040032999 and 20403040033017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1183984 + ... + 6496760.

It is an arithmetic number, because the mean of its divisors is an integer number (559081338200).

Almost surely, 2^{20403040033044} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20403040033044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26835904233600).

20403040033044 is an abundant number, since it is smaller than the sum of its proper divisors (33268768434156).

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

20403040033044 is an equidigital number, since it uses as much as digits as its factorization.

20403040033044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5313241 (or 5313221 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 20403040033044 its reverse (44033004030402), we get a palindrome (64436044063446).

The spelling of 20403040033044 in words is "twenty trillion, four hundred three billion, forty million, thirty-three thousand, forty-four".