20400244014 has 16 divisors (see below), whose sum is σ = 41204454480. Its totient is φ = 6732753600.

The previous prime is 20400244003. The next prime is 20400244019. The reversal of 20400244014 is 41044200402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20400244019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16831279 + ... + 16832490.

It is an arithmetic number, because the mean of its divisors is an integer number (2575278405).

Almost surely, 2^20400244014 is an apocalyptic number.

20400244014 is an abundant number, since it is smaller than the sum of its proper divisors (20804210466).

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

20400244014 is a wasteful number, since it uses less digits than its factorization.

20400244014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33663875.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 20400244014 its reverse (41044200402), we get a palindrome (61444444416).

The spelling of 20400244014 in words is "twenty billion, four hundred million, two hundred forty-four thousand, fourteen".