244040000020 has 24 divisors (see below), whose sum is σ = 520133017824. Its totient is φ = 96159044256.

The previous prime is 244040000003. The next prime is 244040000137. The reversal of 244040000020 is 20000040442.

It is a junction number, because it is equal to n+sod(n) for n = 244039999949 and 244040000003.

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, 91058362 + ... + 91061041.

It is an arithmetic number, because the mean of its divisors is an integer number (21672209076).

Almost surely, 2^244040000020 is an apocalyptic number.

244040000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244040000020 is an abundant number, since it is smaller than the sum of its proper divisors (276093017804).

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

244040000020 is a wasteful number, since it uses less digits than its factorization.

244040000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182119479 (or 182119477 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 244040000020 its reverse (20000040442), we get a palindrome (264040040462).

The spelling of 244040000020 in words is "two hundred forty-four billion, forty million, twenty", and thus it is an aban number.