42338489 has 2 divisors, whose sum is σ = 42338490. Its totient is φ = 42338488.

The previous prime is 42338473. The next prime is 42338497. The reversal of 42338489 is 98483324.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33547264 + 8791225 = 5792^2 + 2965^2 .

It is a cyclic number.

It is not a de Polignac number, because 42338489 - 2⁴ = 42338473 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42338389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21169244 + 21169245.

It is an arithmetic number, because the mean of its divisors is an integer number (21169245).

Almost surely, 2^42338489 is an apocalyptic number.

It is an amenable number.

42338489 is a deficient number, since it is larger than the sum of its proper divisors (1).

42338489 is an equidigital number, since it uses as much as digits as its factorization.

42338489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 41.

The square root of 42338489 is about 6506.8032857925. The cubic root of 42338489 is about 348.5339740329.

The spelling of 42338489 in words is "forty-two million, three hundred thirty-eight thousand, four hundred eighty-nine".