219842 has 16 divisors (see below), whose sum is σ = 387072. Its totient is φ = 91680.

The previous prime is 219839. The next prime is 219847. The reversal of 219842 is 248912.

219842 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (219847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383 + ... + 765.

It is an arithmetic number, because the mean of its divisors is an integer number (24192).

2²¹⁹⁸⁴² is an apocalyptic number.

219842 is the 383-rd pentagonal number.

219842 is a deficient number, since it is larger than the sum of its proper divisors (167230).

219842 is a wasteful number, since it uses less digits than its factorization.

219842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433.

The product of its digits is 1152, while the sum is 26.

The square root of 219842 is about 468.8731171650. The cubic root of 219842 is about 60.3536521479.

The spelling of 219842 in words is "two hundred nineteen thousand, eight hundred forty-two".