2219930287 has 4 divisors (see below), whose sum is σ = 2224746216. Its totient is φ = 2215114360.

The previous prime is 2219930267. The next prime is 2219930299. The reversal of 2219930287 is 7820399122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2219930287 - 2¹¹ = 2219928239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2219930267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2407273 + ... + 2408194.

It is an arithmetic number, because the mean of its divisors is an integer number (556186554).

Almost surely, 2^2219930287 is an apocalyptic number.

2219930287 is a deficient number, since it is larger than the sum of its proper divisors (4815929).

2219930287 is an equidigital number, since it uses as much as digits as its factorization.

2219930287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4815928.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 2219930287 is about 47116.1361637391. The cubic root of 2219930287 is about 1304.5070949143.

The spelling of 2219930287 in words is "two billion, two hundred nineteen million, nine hundred thirty thousand, two hundred eighty-seven".