20440413144 has 48 divisors (see below), whose sum is σ = 55366233000. Its totient is φ = 6812636544.

The previous prime is 20440413113. The next prime is 20440413247. The reversal of 20440413144 is 44131404402.

20440413144 is a `hidden beast` number, since 204 + 4 + 0 + 413 + 1 + 44 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 932292 + ... + 953964.

Almost surely, 2^20440413144 is an apocalyptic number.

20440413144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20440413144 is an abundant number, since it is smaller than the sum of its proper divisors (34925819856).

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

20440413144 is a wasteful number, since it uses less digits than its factorization.

20440413144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34784 (or 34777 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 20440413144 its reverse (44131404402), we get a palindrome (64571817546).

The spelling of 20440413144 in words is "twenty billion, four hundred forty million, four hundred thirteen thousand, one hundred forty-four".