38138799 has 8 divisors (see below), whose sum is σ = 52605360. Its totient is φ = 24549056.

The previous prime is 38138797. The next prime is 38138809. The reversal of 38138799 is 99783183.

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

It is a cyclic number.

It is not a de Polignac number, because 38138799 - 2¹ = 38138797 is a prime.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 219102 + ... + 219275.

It is an arithmetic number, because the mean of its divisors is an integer number (6575670).

Almost surely, 2^38138799 is an apocalyptic number.

38138799 is a deficient number, since it is larger than the sum of its proper divisors (14466561).

38138799 is a wasteful number, since it uses less digits than its factorization.

38138799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438409.

The product of its digits is 326592, while the sum is 48.

The square root of 38138799 is about 6175.6618268814. The cubic root of 38138799 is about 336.6063756145.

The spelling of 38138799 in words is "thirty-eight million, one hundred thirty-eight thousand, seven hundred ninety-nine".