38945247 has 8 divisors (see below), whose sum is σ = 56647680. Its totient is φ = 23603160.

The previous prime is 38945239. The next prime is 38945261. The reversal of 38945247 is 74254983.

38945247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 38945247 - 2³ = 38945239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38945199 and 38945208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38945287) 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 7 ways as a sum of consecutive naturals, for example, 590047 + ... + 590112.

It is an arithmetic number, because the mean of its divisors is an integer number (7080960).

Almost surely, 2^38945247 is an apocalyptic number.

38945247 is a deficient number, since it is larger than the sum of its proper divisors (17702433).

38945247 is a wasteful number, since it uses less digits than its factorization.

38945247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180173.

The product of its digits is 241920, while the sum is 42.

The square root of 38945247 is about 6240.6127103034. The cubic root of 38945247 is about 338.9623699758.

The spelling of 38945247 in words is "thirty-eight million, nine hundred forty-five thousand, two hundred forty-seven".