38138793 has 16 divisors (see below), whose sum is σ = 63399936. Its totient is φ = 19812240.

The previous prime is 38138791. The next prime is 38138797. The reversal of 38138793 is 39783183.

It is not a de Polignac number, because 38138793 - 2¹ = 38138791 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38138791) 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, 82321 + ... + 82782.

It is an arithmetic number, because the mean of its divisors is an integer number (3962496).

Almost surely, 2^38138793 is an apocalyptic number.

38138793 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

38138793 is a deficient number, since it is larger than the sum of its proper divisors (25261143).

38138793 is a wasteful number, since it uses less digits than its factorization.

38138793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165124.

The product of its digits is 108864, while the sum is 42.

The square root of 38138793 is about 6175.6613411035. The cubic root of 38138793 is about 336.6063579628.

It can be divided in two parts, 38 and 138793, that added together give a palindrome (138831).

The spelling of 38138793 in words is "thirty-eight million, one hundred thirty-eight thousand, seven hundred ninety-three".