20044562 has 4 divisors (see below), whose sum is σ = 30066846. Its totient is φ = 10022280.

The previous prime is 20044529. The next prime is 20044567. The reversal of 20044562 is 26544002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14432401 + 5612161 = 3799^2 + 2369^2 .

It is not an unprimeable number, because it can be changed into a prime (20044567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5011139 + ... + 5011142.

Almost surely, 2^20044562 is an apocalyptic number.

20044562 is a deficient number, since it is larger than the sum of its proper divisors (10022284).

20044562 is a wasteful number, since it uses less digits than its factorization.

20044562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10022283.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 20044562 is about 4477.1153659471. The cubic root of 20044562 is about 271.6432119128.

Adding to 20044562 its reverse (26544002), we get a palindrome (46588564).

The spelling of 20044562 in words is "twenty million, forty-four thousand, five hundred sixty-two".