219030790 has 16 divisors (see below), whose sum is σ = 430097040. Its totient is φ = 79647520.

The previous prime is 219030719. The next prime is 219030793. The reversal of 219030790 is 97030912.

219030790 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219030793) 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 7 ways as a sum of consecutive naturals, for example, 995485 + ... + 995704.

It is an arithmetic number, because the mean of its divisors is an integer number (26881065).

Almost surely, 2^219030790 is an apocalyptic number.

219030790 is a deficient number, since it is larger than the sum of its proper divisors (211066250).

219030790 is a wasteful number, since it uses less digits than its factorization.

219030790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991207.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 219030790 is about 14799.6888480806. The cubic root of 219030790 is about 602.7932629939.

The spelling of 219030790 in words is "two hundred nineteen million, thirty thousand, seven hundred ninety".