20144064 has 28 divisors (see below), whose sum is σ = 53298344. Its totient is φ = 6714624.

The previous prime is 20144053. The next prime is 20144071. The reversal of 20144064 is 46044102.

It is a self number, because there is not a number n which added to its sum of digits gives 20144064.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52267 + ... + 52650.

Almost surely, 2^20144064 is an apocalyptic number.

20144064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20144064 is an abundant number, since it is smaller than the sum of its proper divisors (33154280).

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

20144064 is a wasteful number, since it uses less digits than its factorization.

20144064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104932 (or 104922 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 20144064 is about 4488.2138986461. The cubic root of 20144064 is about 272.0919527632.

Adding to 20144064 its reverse (46044102), we get a palindrome (66188166).

The spelling of 20144064 in words is "twenty million, one hundred forty-four thousand, sixty-four".