2238778219 has 2 divisors, whose sum is σ = 2238778220. Its totient is φ = 2238778218.

The previous prime is 2238778183. The next prime is 2238778231. The reversal of 2238778219 is 9128778322.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2238778219 - 2²³ = 2230389611 is a prime.

It is a super-2 number, since 2×2238778219² = 10024255827737623922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2238778249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1119389109 + 1119389110.

It is an arithmetic number, because the mean of its divisors is an integer number (1119389110).

Almost surely, 2^2238778219 is an apocalyptic number.

2238778219 is a deficient number, since it is larger than the sum of its proper divisors (1).

2238778219 is an equidigital number, since it uses as much as digits as its factorization.

2238778219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 49.

The square root of 2238778219 is about 47315.7290866367. The cubic root of 2238778219 is about 1308.1885923191.

The spelling of 2238778219 in words is "two billion, two hundred thirty-eight million, seven hundred seventy-eight thousand, two hundred nineteen".