38791249 has 4 divisors (see below), whose sum is σ = 44332864. Its totient is φ = 33249636.

The previous prime is 38791243. The next prime is 38791279. The reversal of 38791249 is 94219783.

38791249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 38791249 - 2⁹ = 38790737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38791243) 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 in 3 ways as a sum of consecutive naturals, for example, 2770797 + ... + 2770810.

It is an arithmetic number, because the mean of its divisors is an integer number (11083216).

Almost surely, 2^38791249 is an apocalyptic number.

It is an amenable number.

38791249 is a deficient number, since it is larger than the sum of its proper divisors (5541615).

38791249 is an equidigital number, since it uses as much as digits as its factorization.

38791249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5541614.

The product of its digits is 108864, while the sum is 43.

The square root of 38791249 is about 6228.2621171560. The cubic root of 38791249 is about 338.5150027496.

The spelling of 38791249 in words is "thirty-eight million, seven hundred ninety-one thousand, two hundred forty-nine".