20400412241 has 24 divisors (see below), whose sum is σ = 23261424480. Its totient is φ = 17737977600.

The previous prime is 20400412183. The next prime is 20400412243. The reversal of 20400412241 is 14221400402.

It is not a de Polignac number, because 20400412241 - 2⁶ = 20400412177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20400412243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 877001 + ... + 899961.

It is an arithmetic number, because the mean of its divisors is an integer number (969226020).

Almost surely, 2^20400412241 is an apocalyptic number.

It is an amenable number.

20400412241 is a deficient number, since it is larger than the sum of its proper divisors (2861012239).

20400412241 is a wasteful number, since it uses less digits than its factorization.

20400412241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23105 (or 23068 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20400412241 its reverse (14221400402), we get a palindrome (34621812643).

The spelling of 20400412241 in words is "twenty billion, four hundred million, four hundred twelve thousand, two hundred forty-one".