38239849 has 2 divisors, whose sum is σ = 38239850. Its totient is φ = 38239848.

The previous prime is 38239841. The next prime is 38239889. The reversal of 38239849 is 94893283.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24601600 + 13638249 = 4960^2 + 3693^2 .

It is a cyclic number.

It is not a de Polignac number, because 38239849 - 2³ = 38239841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38239799 and 38239808.

It is not a weakly prime, because it can be changed into another prime (38239841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19119924 + 19119925.

It is an arithmetic number, because the mean of its divisors is an integer number (19119925).

Almost surely, 2^38239849 is an apocalyptic number.

It is an amenable number.

38239849 is a deficient number, since it is larger than the sum of its proper divisors (1).

38239849 is an equidigital number, since it uses as much as digits as its factorization.

38239849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 46.

The square root of 38239849 is about 6183.8377242615. The cubic root of 38239849 is about 336.9033966606.

The spelling of 38239849 in words is "thirty-eight million, two hundred thirty-nine thousand, eight hundred forty-nine".