19842230 has 16 divisors (see below), whose sum is σ = 37817280. Its totient is φ = 7469952.

The previous prime is 19842227. The next prime is 19842233. The reversal of 19842230 is 3224891.

It is an interprime number because it is at equal distance from previous prime (19842227) and next prime (19842233).

It is a junction number, because it is equal to n+sod(n) for n = 19842193 and 19842202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19842233) 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 7 ways as a sum of consecutive naturals, for example, 58190 + ... + 58529.

It is an arithmetic number, because the mean of its divisors is an integer number (2363580).

Almost surely, 2^19842230 is an apocalyptic number.

19842230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19842230 is a deficient number, since it is larger than the sum of its proper divisors (17975050).

19842230 is a wasteful number, since it uses less digits than its factorization.

19842230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116743.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 19842230 is about 4454.4618081200. The cubic root of 19842230 is about 270.7261204568.

The spelling of 19842230 in words is "nineteen million, eight hundred forty-two thousand, two hundred thirty".