219936930 has 64 divisors (see below), whose sum is σ = 538686720. Its totient is φ = 57459456.

The previous prime is 219936929. The next prime is 219936931. The reversal of 219936930 is 39639912.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (219936929) and next prime (219936931).

It is not an unprimeable number, because it can be changed into a prime (219936931) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 336484 + ... + 337136.

It is an arithmetic number, because the mean of its divisors is an integer number (8416980).

Almost surely, 2^219936930 is an apocalyptic number.

219936930 is an abundant number, since it is smaller than the sum of its proper divisors (318749790).

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

219936930 is a wasteful number, since it uses less digits than its factorization.

219936930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875.

The product of its (nonzero) digits is 78732, while the sum is 42.

The square root of 219936930 is about 14830.2707325254. The cubic root of 219936930 is about 603.6233800369.

The spelling of 219936930 in words is "two hundred nineteen million, nine hundred thirty-six thousand, nine hundred thirty".