219240044 has 6 divisors (see below), whose sum is σ = 383670084. Its totient is φ = 109620020.

The previous prime is 219240037. The next prime is 219240061. The reversal of 219240044 is 440042912.

It is a junction number, because it is equal to n+sod(n) for n = 219239995 and 219240022.

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 as a sum of consecutive naturals, namely, 27405002 + ... + 27405009.

It is an arithmetic number, because the mean of its divisors is an integer number (63945014).

Almost surely, 2^219240044 is an apocalyptic number.

It is an amenable number.

219240044 is a deficient number, since it is larger than the sum of its proper divisors (164430040).

219240044 is a wasteful number, since it uses less digits than its factorization.

219240044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54810015 (or 54810013 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 219240044 is about 14806.7567009119. The cubic root of 219240044 is about 602.9851641019.

Adding to 219240044 its reverse (440042912), we get a palindrome (659282956).

The spelling of 219240044 in words is "two hundred nineteen million, two hundred forty thousand, forty-four".