20044405340 has 12 divisors (see below), whose sum is σ = 42093251256. Its totient is φ = 8017762128.

The previous prime is 20044405313. The next prime is 20044405361. The reversal of 20044405340 is 4350444002.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 501110114 + ... + 501110153.

It is an arithmetic number, because the mean of its divisors is an integer number (3507770938).

Almost surely, 2^20044405340 is an apocalyptic number.

20044405340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20044405340 is an abundant number, since it is smaller than the sum of its proper divisors (22048845916).

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

20044405340 is a wasteful number, since it uses less digits than its factorization.

20044405340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002220276 (or 1002220274 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

Adding to 20044405340 its reverse (4350444002), we get a palindrome (24394849342).

The spelling of 20044405340 in words is "twenty billion, forty-four million, four hundred five thousand, three hundred forty".