20419327 has 4 divisors (see below), whose sum is σ = 20485296. Its totient is φ = 20353360.

The previous prime is 20419307. The next prime is 20419339. The reversal of 20419327 is 72391402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72391402 = 2 ⋅36195701.

It is a cyclic number.

It is not a de Polignac number, because 20419327 - 2¹⁹ = 19895039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20419295 and 20419304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20419307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32518 + ... + 33139.

It is an arithmetic number, because the mean of its divisors is an integer number (5121324).

Almost surely, 2^20419327 is an apocalyptic number.

20419327 is a deficient number, since it is larger than the sum of its proper divisors (65969).

20419327 is an equidigital number, since it uses as much as digits as its factorization.

20419327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65968.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 20419327 is about 4518.7749446061. The cubic root of 20419327 is about 273.3257035678.

The spelling of 20419327 in words is "twenty million, four hundred nineteen thousand, three hundred twenty-seven".