219205030 has 32 divisors (see below), whose sum is σ = 444331008. Its totient is φ = 77138400.

The previous prime is 219205003. The next prime is 219205043. The reversal of 219205030 is 30502912.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 219204992 and 219205010.

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 15 ways as a sum of consecutive naturals, for example, 28732 + ... + 35551.

It is an arithmetic number, because the mean of its divisors is an integer number (13885344).

Almost surely, 2^219205030 is an apocalyptic number.

219205030 is an abundant number, since it is smaller than the sum of its proper divisors (225125978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

219205030 is a wasteful number, since it uses less digits than its factorization.

219205030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64332.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 219205030 is about 14805.5742880849. The cubic root of 219205030 is about 602.9530622313.

Adding to 219205030 its reverse (30502912), we get a palindrome (249707942).

The spelling of 219205030 in words is "two hundred nineteen million, two hundred five thousand, thirty".