219090930 has 16 divisors (see below), whose sum is σ = 525818304. Its totient is φ = 58424240.

The previous prime is 219090929. The next prime is 219090961. The reversal of 219090930 is 39090912.

It is a junction number, because it is equal to n+sod(n) for n = 219090891 and 219090900.

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, 3651486 + ... + 3651545.

It is an arithmetic number, because the mean of its divisors is an integer number (32863644).

Almost surely, 2^219090930 is an apocalyptic number.

219090930 is an abundant number, since it is smaller than the sum of its proper divisors (306727374).

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

219090930 is a wasteful number, since it uses less digits than its factorization.

219090930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7303041.

The product of its (nonzero) digits is 4374, while the sum is 33.

The square root of 219090930 is about 14801.7205081031. The cubic root of 219090930 is about 602.8484282508.

The spelling of 219090930 in words is "two hundred nineteen million, ninety thousand, nine hundred thirty".