2238902789 has 2 divisors, whose sum is σ = 2238902790. Its totient is φ = 2238902788.

The previous prime is 2238902767. The next prime is 2238902843. The reversal of 2238902789 is 9872098322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2195672164 + 43230625 = 46858^2 + 6575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2238902789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2238902719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1119451394 + 1119451395.

It is an arithmetic number, because the mean of its divisors is an integer number (1119451395).

Almost surely, 2^2238902789 is an apocalyptic number.

It is an amenable number.

2238902789 is a deficient number, since it is larger than the sum of its proper divisors (1).

2238902789 is an equidigital number, since it uses as much as digits as its factorization.

2238902789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 2238902789 is about 47317.0454381928. The cubic root of 2238902789 is about 1308.2128552599.

The spelling of 2238902789 in words is "two billion, two hundred thirty-eight million, nine hundred two thousand, seven hundred eighty-nine".