219441830388 has 72 divisors (see below), whose sum is σ = 593369708064. Its totient is φ = 62585894400.

The previous prime is 219441830359. The next prime is 219441830411. The reversal of 219441830388 is 883038144912.

It is a happy number.

219441830388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 219441830388.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2838043 + ... + 2914338.

Almost surely, 2^219441830388 is an apocalyptic number.

It is an amenable number.

219441830388 is an abundant number, since it is smaller than the sum of its proper divisors (373927877676).

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

219441830388 is a wasteful number, since it uses less digits than its factorization.

219441830388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5752433 (or 5752414 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 51.

The spelling of 219441830388 in words is "two hundred nineteen billion, four hundred forty-one million, eight hundred thirty thousand, three hundred eighty-eight".