20127044 has 36 divisors (see below), whose sum is σ = 42397740. Its totient is φ = 8326080.

The previous prime is 20127043. The next prime is 20127109. The reversal of 20127044 is 44072102.

It can be written as a sum of positive squares in 2 ways, for example, as 9486400 + 10640644 = 3080^2 + 3262^2 .

It is not an unprimeable number, because it can be changed into a prime (20127043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3914 + ... + 7454.

It is an arithmetic number, because the mean of its divisors is an integer number (1177715).

Almost surely, 2^20127044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20127044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21198870).

20127044 is an abundant number, since it is smaller than the sum of its proper divisors (22270696).

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

20127044 is a wasteful number, since it uses less digits than its factorization.

20127044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3588 (or 3579 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 20127044 is about 4486.3174207807. The cubic root of 20127044 is about 272.0152997449.

Adding to 20127044 its reverse (44072102), we get a palindrome (64199146).

The spelling of 20127044 in words is "twenty million, one hundred twenty-seven thousand, forty-four".