2238386720 has 24 divisors (see below), whose sum is σ = 5288189004. Its totient is φ = 895354624.

The previous prime is 2238386707. The next prime is 2238386729. The reversal of 2238386720 is 276838322.

It can be written as a sum of positive squares in 2 ways, for example, as 2207872144 + 30514576 = 46988^2 + 5524^2 .

It is not an unprimeable number, because it can be changed into a prime (2238386729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6994799 + ... + 6995118.

Almost surely, 2^2238386720 is an apocalyptic number.

2238386720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2238386720 is an abundant number, since it is smaller than the sum of its proper divisors (3049802284).

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

2238386720 is a wasteful number, since it uses less digits than its factorization.

2238386720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13989932 (or 13989924 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 2238386720 is about 47311.5918142689. The cubic root of 2238386720 is about 1308.1123328102.

The spelling of 2238386720 in words is "two billion, two hundred thirty-eight million, three hundred eighty-six thousand, seven hundred twenty".