20026144 has 24 divisors (see below), whose sum is σ = 39529728. Its totient is φ = 9986880.

The previous prime is 20026141. The next prime is 20026151. The reversal of 20026144 is 44162002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20026141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18909 + ... + 19939.

It is an arithmetic number, because the mean of its divisors is an integer number (1647072).

Almost surely, 2^20026144 is an apocalyptic number.

It is an amenable number.

20026144 is a deficient number, since it is larger than the sum of its proper divisors (19503584).

20026144 is a wasteful number, since it uses less digits than its factorization.

20026144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648 (or 1640 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 20026144 is about 4475.0579884511. The cubic root of 20026144 is about 271.5599863836.

Adding to 20026144 its reverse (44162002), we get a palindrome (64188146).

The spelling of 20026144 in words is "twenty million, twenty-six thousand, one hundred forty-four".