20348019 has 6 divisors (see below), whose sum is σ = 29391596. Its totient is φ = 13565340.

The previous prime is 20348017. The next prime is 20348021. The reversal of 20348019 is 91084302.

It is an interprime number because it is at equal distance from previous prime (20348017) and next prime (20348021).

It is not a de Polignac number, because 20348019 - 2¹ = 20348017 is a prime.

It is a super-2 number, since 2×20348019² = 828083754448722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20347983 and 20348001.

It is not an unprimeable number, because it can be changed into a prime (20348017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1130437 + ... + 1130454.

Almost surely, 2^20348019 is an apocalyptic number.

20348019 is a deficient number, since it is larger than the sum of its proper divisors (9043577).

20348019 is a wasteful number, since it uses less digits than its factorization.

20348019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260897 (or 2260894 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 20348019 is about 4510.8778524806. The cubic root of 20348019 is about 273.0071648081.

The spelling of 20348019 in words is "twenty million, three hundred forty-eight thousand, nineteen".