38481449 has 2 divisors, whose sum is σ = 38481450. Its totient is φ = 38481448.

The previous prime is 38481433. The next prime is 38481451. The reversal of 38481449 is 94418483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23697424 + 14784025 = 4868^2 + 3845^2 .

It is an emirp because it is prime and its reverse (94418483) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38481449 - 2⁴ = 38481433 is a prime.

Together with 38481451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38481049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19240724 + 19240725.

It is an arithmetic number, because the mean of its divisors is an integer number (19240725).

Almost surely, 2^38481449 is an apocalyptic number.

It is an amenable number.

38481449 is a deficient number, since it is larger than the sum of its proper divisors (1).

38481449 is an equidigital number, since it uses as much as digits as its factorization.

38481449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 41.

The square root of 38481449 is about 6203.3417606964. The cubic root of 38481449 is about 337.6114280449.

The spelling of 38481449 in words is "thirty-eight million, four hundred eighty-one thousand, four hundred forty-nine".