38238289 has 2 divisors, whose sum is σ = 38238290. Its totient is φ = 38238288.

The previous prime is 38238251. The next prime is 38238293. The reversal of 38238289 is 98283283.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36300625 + 1937664 = 6025^2 + 1392^2 .

It is a cyclic number.

It is not a de Polignac number, because 38238289 - 2¹¹ = 38236241 is a prime.

It is not a weakly prime, because it can be changed into another prime (38238209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19119144 + 19119145.

It is an arithmetic number, because the mean of its divisors is an integer number (19119145).

Almost surely, 2^38238289 is an apocalyptic number.

It is an amenable number.

38238289 is a deficient number, since it is larger than the sum of its proper divisors (1).

38238289 is an equidigital number, since it uses as much as digits as its factorization.

38238289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 43.

The square root of 38238289 is about 6183.7115877117. The cubic root of 38238289 is about 336.8988152579.

The spelling of 38238289 in words is "thirty-eight million, two hundred thirty-eight thousand, two hundred eighty-nine".