219930290 has 16 divisors (see below), whose sum is σ = 396370368. Its totient is φ = 87861936.

The previous prime is 219930283. The next prime is 219930299. The reversal of 219930290 is 92039912.

It is a self number, because there is not a number n which added to its sum of digits gives 219930290.

It is not an unprimeable number, because it can be changed into a prime (219930299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5132 + ... + 21591.

It is an arithmetic number, because the mean of its divisors is an integer number (24773148).

Almost surely, 2^219930290 is an apocalyptic number.

219930290 is a deficient number, since it is larger than the sum of its proper divisors (176440078).

219930290 is a wasteful number, since it uses less digits than its factorization.

219930290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27553.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 219930290 is about 14830.0468643899. The cubic root of 219930290 is about 603.6173054173.

The spelling of 219930290 in words is "two hundred nineteen million, nine hundred thirty thousand, two hundred ninety".