20117044 has 6 divisors (see below), whose sum is σ = 35204834. Its totient is φ = 10058520.

The previous prime is 20117023. The next prime is 20117059. The reversal of 20117044 is 44071102.

It can be written as a sum of positive squares in only one way, i.e., 19536400 + 580644 = 4420^2 + 762^2 .

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 as a sum of consecutive naturals, namely, 2514627 + ... + 2514634.

Almost surely, 2^20117044 is an apocalyptic number.

It is an amenable number.

20117044 is a deficient number, since it is larger than the sum of its proper divisors (15087790).

20117044 is a wasteful number, since it uses less digits than its factorization.

20117044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5029265 (or 5029263 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 20117044 is about 4485.2027824838. The cubic root of 20117044 is about 271.9702425635.

Adding to 20117044 its reverse (44071102), we get a palindrome (64188146).

The spelling of 20117044 in words is "twenty million, one hundred seventeen thousand, forty-four".