38942249 has 2 divisors, whose sum is σ = 38942250. Its totient is φ = 38942248.

The previous prime is 38942207. The next prime is 38942269. The reversal of 38942249 is 94224983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25200400 + 13741849 = 5020^2 + 3707^2 .

It is a cyclic number.

It is not a de Polignac number, because 38942249 - 2⁸ = 38941993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38942269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19471124 + 19471125.

It is an arithmetic number, because the mean of its divisors is an integer number (19471125).

Almost surely, 2^38942249 is an apocalyptic number.

It is an amenable number.

38942249 is a deficient number, since it is larger than the sum of its proper divisors (1).

38942249 is an equidigital number, since it uses as much as digits as its factorization.

38942249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 41.

The square root of 38942249 is about 6240.3725049071. The cubic root of 38942249 is about 338.9536719930.

The spelling of 38942249 in words is "thirty-eight million, nine hundred forty-two thousand, two hundred forty-nine".