19342231 has 4 divisors (see below), whose sum is σ = 19865032. Its totient is φ = 18819432.

The previous prime is 19342223. The next prime is 19342249. The reversal of 19342231 is 13224391.

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 19342231 - 2³ = 19342223 is a prime.

It is a super-2 number, since 2×19342231² = 748243800114722, 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 = 19342196 and 19342205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19342261) 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, 261345 + ... + 261418.

It is an arithmetic number, because the mean of its divisors is an integer number (4966258).

Almost surely, 2^19342231 is an apocalyptic number.

19342231 is a deficient number, since it is larger than the sum of its proper divisors (522801).

19342231 is an equidigital number, since it uses as much as digits as its factorization.

19342231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522800.

The product of its digits is 1296, while the sum is 25.

The square root of 19342231 is about 4397.9803319251. The cubic root of 19342231 is about 268.4327631556.

It can be divided in two parts, 193 and 42231, that added together give a palindrome (42424).

The spelling of 19342231 in words is "nineteen million, three hundred forty-two thousand, two hundred thirty-one".