38945013 has 8 divisors (see below), whose sum is σ = 52120800. Its totient is φ = 25866288.

The previous prime is 38944993. The next prime is 38945017. The reversal of 38945013 is 31054983.

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

It is not a de Polignac number, because 38945013 - 2⁵ = 38944981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38945017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23323 + ... + 24936.

It is an arithmetic number, because the mean of its divisors is an integer number (6515100).

Almost surely, 2^38945013 is an apocalyptic number.

It is an amenable number.

38945013 is a deficient number, since it is larger than the sum of its proper divisors (13175787).

38945013 is a wasteful number, since it uses less digits than its factorization.

38945013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48531.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 38945013 is about 6240.5939621161. The cubic root of 38945013 is about 338.9616910966.

Adding to 38945013 its reverse (31054983), we get a palindrome (69999996).

The spelling of 38945013 in words is "thirty-eight million, nine hundred forty-five thousand, thirteen".