2238389956 has 12 divisors (see below), whose sum is σ = 4273290000. Its totient is φ = 1017449960.

The previous prime is 2238389953. The next prime is 2238389971. The reversal of 2238389956 is 6599838322.

It is a junction number, because it is equal to n+sod(n) for n = 2238389897 and 2238389906.

It is not an unprimeable number, because it can be changed into a prime (2238389953) 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, 25436206 + ... + 25436293.

It is an arithmetic number, because the mean of its divisors is an integer number (356107500).

Almost surely, 2^2238389956 is an apocalyptic number.

It is an amenable number.

2238389956 is a deficient number, since it is larger than the sum of its proper divisors (2034900044).

2238389956 is a wasteful number, since it uses less digits than its factorization.

2238389956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50872514 (or 50872512 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 55.

The square root of 2238389956 is about 47311.6260130636. The cubic root of 2238389956 is about 1308.1129631823.

The spelling of 2238389956 in words is "two billion, two hundred thirty-eight million, three hundred eighty-nine thousand, nine hundred fifty-six".