38449147 has 8 divisors (see below), whose sum is σ = 42000192. Its totient is φ = 34907400.

The previous prime is 38449133. The next prime is 38449183. The reversal of 38449147 is 74194483.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-38449147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38489147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8572 + ... + 12262.

It is an arithmetic number, because the mean of its divisors is an integer number (5250024).

Almost surely, 2^38449147 is an apocalyptic number.

38449147 is a deficient number, since it is larger than the sum of its proper divisors (3551045).

38449147 is a wasteful number, since it uses less digits than its factorization.

38449147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4649.

The product of its digits is 96768, while the sum is 40.

The square root of 38449147 is about 6200.7376174129. The cubic root of 38449147 is about 337.5169359585.

The spelling of 38449147 in words is "thirty-eight million, four hundred forty-nine thousand, one hundred forty-seven".