2238778182 has 8 divisors (see below), whose sum is σ = 4477556376. Its totient is φ = 746259392.

The previous prime is 2238778169. The next prime is 2238778183. The reversal of 2238778182 is 2818778322.

It is a sphenic number, since it is the product of 3 distinct primes.

2238778182 is an admirable number.

It is a super-3 number, since 3×2238778182³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238778183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186564843 + ... + 186564854.

It is an arithmetic number, because the mean of its divisors is an integer number (559694547).

Almost surely, 2^2238778182 is an apocalyptic number.

2238778182 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2238778182 is a wasteful number, since it uses less digits than its factorization.

2238778182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373129702.

The product of its digits is 602112, while the sum is 48.

The square root of 2238778182 is about 47315.7286956462. The cubic root of 2238778182 is about 1308.1885851123.

The spelling of 2238778182 in words is "two billion, two hundred thirty-eight million, seven hundred seventy-eight thousand, one hundred eighty-two".