38648013 has 16 divisors (see below), whose sum is σ = 53154816. Its totient is φ = 24963120.

The previous prime is 38648011. The next prime is 38648059. The reversal of 38648013 is 31084683.

It is not a de Polignac number, because 38648013 - 2¹ = 38648011 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38648011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15756 + ... + 18042.

It is an arithmetic number, because the mean of its divisors is an integer number (3322176).

Almost surely, 2^38648013 is an apocalyptic number.

It is an amenable number.

38648013 is a deficient number, since it is larger than the sum of its proper divisors (14506803).

38648013 is a wasteful number, since it uses less digits than its factorization.

38648013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 38648013 is about 6216.7526088787. The cubic root of 38648013 is about 338.0978353154.

The spelling of 38648013 in words is "thirty-eight million, six hundred forty-eight thousand, thirteen".