20441506 has 4 divisors (see below), whose sum is σ = 30662262. Its totient is φ = 10220752.

The previous prime is 20441471. The next prime is 20441563. The reversal of 20441506 is 60514402.

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., 14753281 + 5688225 = 3841^2 + 2385^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110375 + ... + 5110378.

Almost surely, 2^20441506 is an apocalyptic number.

20441506 is a deficient number, since it is larger than the sum of its proper divisors (10220756).

20441506 is a wasteful number, since it uses less digits than its factorization.

20441506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10220755.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 20441506 is about 4521.2283729093. The cubic root of 20441506 is about 273.4246277761.

Adding to 20441506 its reverse (60514402), we get a palindrome (80955908).

The spelling of 20441506 in words is "twenty million, four hundred forty-one thousand, five hundred six".