219842804 has 12 divisors (see below), whose sum is σ = 387534084. Its totient is φ = 109118784.

The previous prime is 219842783. The next prime is 219842813. The reversal of 219842804 is 408248912.

It can be written as a sum of positive squares in 2 ways, for example, as 189062500 + 30780304 = 13750^2 + 5548^2 .

It is a congruent number.

It is an unprimeable number.

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, 200039 + ... + 201134.

It is an arithmetic number, because the mean of its divisors is an integer number (32294507).

Almost surely, 2^219842804 is an apocalyptic number.

It is an amenable number.

219842804 is a deficient number, since it is larger than the sum of its proper divisors (167691280).

219842804 is a wasteful number, since it uses less digits than its factorization.

219842804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401314 (or 401312 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 219842804 is about 14827.0969511904. The cubic root of 219842804 is about 603.5372572237.

The spelling of 219842804 in words is "two hundred nineteen million, eight hundred forty-two thousand, eight hundred four".