20324461 has 4 divisors (see below), whose sum is σ = 20339424. Its totient is φ = 20309500.

The previous prime is 20324453. The next prime is 20324483. The reversal of 20324461 is 16442302.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 20324461 - 2³ = 20324453 is a prime.

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 a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20304461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5215 + ... + 8236.

It is an arithmetic number, because the mean of its divisors is an integer number (5084856).

Almost surely, 2^20324461 is an apocalyptic number.

It is an amenable number.

20324461 is a deficient number, since it is larger than the sum of its proper divisors (14963).

20324461 is a wasteful number, since it uses less digits than its factorization.

20324461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14962.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 20324461 is about 4508.2658528530. The cubic root of 20324461 is about 272.9017657450.

Adding to 20324461 its reverse (16442302), we get a palindrome (36766763).

The spelling of 20324461 in words is "twenty million, three hundred twenty-four thousand, four hundred sixty-one".