19220339 has 4 divisors (see below), whose sum is σ = 19491120. Its totient is φ = 18949560.

The previous prime is 19220323. The next prime is 19220363. The reversal of 19220339 is 93302291.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 19220339 - 2⁴ = 19220323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19220239) 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, 135284 + ... + 135425.

It is an arithmetic number, because the mean of its divisors is an integer number (4872780).

Almost surely, 2^19220339 is an apocalyptic number.

19220339 is a deficient number, since it is larger than the sum of its proper divisors (270781).

19220339 is an equidigital number, since it uses as much as digits as its factorization.

19220339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270780.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 19220339 is about 4384.1007059601. The cubic root of 19220339 is about 267.8676994206.

The spelling of 19220339 in words is "nineteen million, two hundred twenty thousand, three hundred thirty-nine".