20040531044 has 12 divisors (see below), whose sum is σ = 35224079100. Its totient is φ = 9976508448.

The previous prime is 20040530981. The next prime is 20040531059. The reversal of 20040531044 is 44013504002.

It can be written as a sum of positive squares in 2 ways, for example, as 16284312100 + 3756218944 = 127610^2 + 61288^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10938239 + ... + 10940070.

It is an arithmetic number, because the mean of its divisors is an integer number (2935339925).

Almost surely, 2^20040531044 is an apocalyptic number.

It is an amenable number.

20040531044 is a deficient number, since it is larger than the sum of its proper divisors (15183548056).

20040531044 is a wasteful number, since it uses less digits than its factorization.

20040531044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21878542 (or 21878540 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The spelling of 20040531044 in words is "twenty billion, forty million, five hundred thirty-one thousand, forty-four".