20711044 has 6 divisors (see below), whose sum is σ = 36244334. Its totient is φ = 10355520.

The previous prime is 20711029. The next prime is 20711051. The reversal of 20711044 is 44011702.

It can be written as a sum of positive squares in only one way, i.e., 16908544 + 3802500 = 4112^2 + 1950^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2588877 + ... + 2588884.

Almost surely, 2^20711044 is an apocalyptic number.

It is an amenable number.

20711044 is a deficient number, since it is larger than the sum of its proper divisors (15533290).

20711044 is a wasteful number, since it uses less digits than its factorization.

20711044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5177765 (or 5177763 counting only the distinct ones).

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

The square root of 20711044 is about 4550.9388042469. The cubic root of 20711044 is about 274.6211598921.

Adding to 20711044 its reverse (44011702), we get a palindrome (64722746).

The spelling of 20711044 in words is "twenty million, seven hundred eleven thousand, forty-four".