38548409 has 2 divisors, whose sum is σ = 38548410. Its totient is φ = 38548408.

The previous prime is 38548403. The next prime is 38548427. The reversal of 38548409 is 90484583.

38548409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30691600 + 7856809 = 5540^2 + 2803^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38548409 is a prime.

It is not a weakly prime, because it can be changed into another prime (38548403) 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, 19274204 + 19274205.

It is an arithmetic number, because the mean of its divisors is an integer number (19274205).

Almost surely, 2^38548409 is an apocalyptic number.

It is an amenable number.

38548409 is a deficient number, since it is larger than the sum of its proper divisors (1).

38548409 is an equidigital number, since it uses as much as digits as its factorization.

38548409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 38548409 is about 6208.7365059245. The cubic root of 38548409 is about 337.8071358666.

The spelling of 38548409 in words is "thirty-eight million, five hundred forty-eight thousand, four hundred nine".