38198449 has 2 divisors, whose sum is σ = 38198450. Its totient is φ = 38198448.

The previous prime is 38198443. The next prime is 38198453. The reversal of 38198449 is 94489183.

38198449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31438449 + 6760000 = 5607^2 + 2600^2 .

It is a cyclic number.

It is not a de Polignac number, because 38198449 - 2³ = 38198441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38198399 and 38198408.

It is not a weakly prime, because it can be changed into another prime (38198441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19099224 + 19099225.

It is an arithmetic number, because the mean of its divisors is an integer number (19099225).

Almost surely, 2^38198449 is an apocalyptic number.

It is an amenable number.

38198449 is a deficient number, since it is larger than the sum of its proper divisors (1).

38198449 is an equidigital number, since it uses as much as digits as its factorization.

38198449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 46.

The square root of 38198449 is about 6180.4893819179. The cubic root of 38198449 is about 336.7817710310.

The spelling of 38198449 in words is "thirty-eight million, one hundred ninety-eight thousand, four hundred forty-nine".