20484361 has 4 divisors (see below), whose sum is σ = 20566224. Its totient is φ = 20402500.

The previous prime is 20484319. The next prime is 20484391. The reversal of 20484361 is 16348402.

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 20484361 - 2¹⁵ = 20451593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20484391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40555 + ... + 41056.

It is an arithmetic number, because the mean of its divisors is an integer number (5141556).

Almost surely, 2^20484361 is an apocalyptic number.

It is an amenable number.

20484361 is a deficient number, since it is larger than the sum of its proper divisors (81863).

20484361 is an equidigital number, since it uses as much as digits as its factorization.

20484361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81862.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 20484361 is about 4525.9652009268. The cubic root of 20484361 is about 273.6155698950.

The spelling of 20484361 in words is "twenty million, four hundred eighty-four thousand, three hundred sixty-one".