20244406239 has 12 divisors (see below), whose sum is σ = 29678367576. Its totient is φ = 13294833552.

The previous prime is 20244406219. The next prime is 20244406249. The reversal of 20244406239 is 93260444202.

20244406239 is a `hidden beast` number, since 2 + 0 + 24 + 4 + 4 + 0 + 623 + 9 = 666.

It is not a de Polignac number, because 20244406239 - 2⁵ = 20244406207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20244406219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16785804 + ... + 16787009.

It is an arithmetic number, because the mean of its divisors is an integer number (2473197298).

Almost surely, 2^20244406239 is an apocalyptic number.

20244406239 is a deficient number, since it is larger than the sum of its proper divisors (9433961337).

20244406239 is a wasteful number, since it uses less digits than its factorization.

20244406239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33572886 (or 33572883 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 20244406239 in words is "twenty billion, two hundred forty-four million, four hundred six thousand, two hundred thirty-nine".