20104444240 has 40 divisors (see below), whose sum is σ = 47099672928. Its totient is φ = 7980385920.

The previous prime is 20104444201. The next prime is 20104444301. The reversal of 20104444240 is 4244440102.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 948702 + ... + 969661.

Almost surely, 2^20104444240 is an apocalyptic number.

20104444240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20104444240 is an abundant number, since it is smaller than the sum of its proper divisors (26995228688).

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

20104444240 is a wasteful number, since it uses less digits than its factorization.

20104444240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918507 (or 1918501 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 20104444240 its reverse (4244440102), we get a palindrome (24348884342).

The spelling of 20104444240 in words is "twenty billion, one hundred four million, four hundred forty-four thousand, two hundred forty".