219842842 has 16 divisors (see below), whose sum is σ = 335508480. Its totient is φ = 108023328.

The previous prime is 219842839. The next prime is 219842849. The reversal of 219842842 is 248248912.

It is a junction number, because it is equal to n+sod(n) for n = 219842795 and 219842804.

It is not an unprimeable number, because it can be changed into a prime (219842849) 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, 23134 + ... + 31222.

It is an arithmetic number, because the mean of its divisors is an integer number (20969280).

Almost surely, 2^219842842 is an apocalyptic number.

219842842 is a deficient number, since it is larger than the sum of its proper divisors (115665638).

219842842 is a wasteful number, since it uses less digits than its factorization.

219842842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8325.

The product of its digits is 73728, while the sum is 40.

The square root of 219842842 is about 14827.0982326280. The cubic root of 219842842 is about 603.5372919976.

The spelling of 219842842 in words is "two hundred nineteen million, eight hundred forty-two thousand, eight hundred forty-two".