219439448 has 16 divisors (see below), whose sum is σ = 418194960. Its totient is φ = 107920800.

The previous prime is 219439427. The next prime is 219439453. The reversal of 219439448 is 844934912.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 219439399 and 219439408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224348 + ... + 225323.

It is an arithmetic number, because the mean of its divisors is an integer number (26137185).

Almost surely, 2^219439448 is an apocalyptic number.

It is an amenable number.

219439448 is a deficient number, since it is larger than the sum of its proper divisors (198755512).

219439448 is a wasteful number, since it uses less digits than its factorization.

219439448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449738 (or 449734 counting only the distinct ones).

The product of its digits is 248832, while the sum is 44.

The square root of 219439448 is about 14813.4887180569. The cubic root of 219439448 is about 603.1679184578.

The spelling of 219439448 in words is "two hundred nineteen million, four hundred thirty-nine thousand, four hundred forty-eight".