2238806740 has 12 divisors (see below), whose sum is σ = 4701494196. Its totient is φ = 895522688.

The previous prime is 2238806723. The next prime is 2238806741. The reversal of 2238806740 is 476088322.

2238806740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1283502276 + 955304464 = 35826^2 + 30908^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2238806693 and 2238806702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238806741) 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, 55970149 + ... + 55970188.

It is an arithmetic number, because the mean of its divisors is an integer number (391791183).

Almost surely, 2^2238806740 is an apocalyptic number.

2238806740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2238806740 is an abundant number, since it is smaller than the sum of its proper divisors (2462687456).

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

2238806740 is a wasteful number, since it uses less digits than its factorization.

2238806740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111940346 (or 111940344 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 2238806740 is about 47316.0304759391. The cubic root of 2238806740 is about 1308.1941475349.

The spelling of 2238806740 in words is "two billion, two hundred thirty-eight million, eight hundred six thousand, seven hundred forty".