38242289 has 2 divisors, whose sum is σ = 38242290. Its totient is φ = 38242288.

The previous prime is 38242279. The next prime is 38242297. The reversal of 38242289 is 98224283.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36096064 + 2146225 = 6008^2 + 1465^2 .

It is a cyclic number.

It is not a de Polignac number, because 38242289 - 2⁸ = 38242033 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38242219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19121144 + 19121145.

It is an arithmetic number, because the mean of its divisors is an integer number (19121145).

Almost surely, 2^38242289 is an apocalyptic number.

It is an amenable number.

38242289 is a deficient number, since it is larger than the sum of its proper divisors (1).

38242289 is an equidigital number, since it uses as much as digits as its factorization.

38242289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 38.

The square root of 38242289 is about 6184.0350096034. The cubic root of 38242289 is about 336.9105621945.

The spelling of 38242289 in words is "thirty-eight million, two hundred forty-two thousand, two hundred eighty-nine".