20224461 has 4 divisors (see below), whose sum is σ = 26965952. Its totient is φ = 13482972.

The previous prime is 20224453. The next prime is 20224469. The reversal of 20224461 is 16442202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (20224453) and next prime (20224469).

It is not a de Polignac number, because 20224461 - 2³ = 20224453 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20224469) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 3370741 + ... + 3370746.

It is an arithmetic number, because the mean of its divisors is an integer number (6741488).

Almost surely, 2^20224461 is an apocalyptic number.

It is an amenable number.

20224461 is a deficient number, since it is larger than the sum of its proper divisors (6741491).

20224461 is an equidigital number, since it uses as much as digits as its factorization.

20224461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6741490.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 20224461 is about 4497.1614380629. The cubic root of 20224461 is about 272.4534544410.

Adding to 20224461 its reverse (16442202), we get a palindrome (36666663).

The spelling of 20224461 in words is "twenty million, two hundred twenty-four thousand, four hundred sixty-one".