219226398 has 8 divisors (see below), whose sum is σ = 438452808. Its totient is φ = 73075464.

The previous prime is 219226393. The next prime is 219226463. The reversal of 219226398 is 893622912.

219226398 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

219226398 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219226393) by changing a digit.

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, 18268861 + ... + 18268872.

It is an arithmetic number, because the mean of its divisors is an integer number (54806601).

Almost surely, 2^219226398 is an apocalyptic number.

219226398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

219226398 is a wasteful number, since it uses less digits than its factorization.

219226398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36537738.

The product of its digits is 93312, while the sum is 42.

The square root of 219226398 is about 14806.2958906001. The cubic root of 219226398 is about 602.9726534521.

The spelling of 219226398 in words is "two hundred nineteen million, two hundred twenty-six thousand, three hundred ninety-eight".