20044041440 has 24 divisors (see below), whose sum is σ = 47354048280. Its totient is φ = 8017616512.

The previous prime is 20044041383. The next prime is 20044041481. The reversal of 20044041440 is 4414044002.

It is a congruent number.

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, 62637470 + ... + 62637789.

It is an arithmetic number, because the mean of its divisors is an integer number (1973085345).

Almost surely, 2^20044041440 is an apocalyptic number.

20044041440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20044041440 is an abundant number, since it is smaller than the sum of its proper divisors (27310006840).

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

20044041440 is a wasteful number, since it uses less digits than its factorization.

20044041440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125275274 (or 125275266 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 20044041440 its reverse (4414044002), we get a palindrome (24458085442).

The spelling of 20044041440 in words is "twenty billion, forty-four million, forty-one thousand, four hundred forty".