219323994 has 16 divisors (see below), whose sum is σ = 448849632. Its totient is φ = 71407728.

The previous prime is 219323989. The next prime is 219324059. The reversal of 219323994 is 499323912.

219323994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×219323994² = 96206028688224072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424789 + ... + 425304.

It is an arithmetic number, because the mean of its divisors is an integer number (28053102).

Almost surely, 2^219323994 is an apocalyptic number.

219323994 is an abundant number, since it is smaller than the sum of its proper divisors (229525638).

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

219323994 is a wasteful number, since it uses less digits than its factorization.

219323994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850141.

The product of its digits is 104976, while the sum is 42.

The square root of 219323994 is about 14809.5912840294. The cubic root of 219323994 is about 603.0621180256.

The spelling of 219323994 in words is "two hundred nineteen million, three hundred twenty-three thousand, nine hundred ninety-four".