38799138 has 16 divisors (see below), whose sum is σ = 88683840. Its totient is φ = 11085456.

The previous prime is 38799133. The next prime is 38799139. The reversal of 38799138 is 83199783.

It is not an unprimeable number, because it can be changed into a prime (38799133) 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, 461853 + ... + 461936.

It is an arithmetic number, because the mean of its divisors is an integer number (5542740).

Almost surely, 2^38799138 is an apocalyptic number.

38799138 is an abundant number, since it is smaller than the sum of its proper divisors (49884702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38799138 is a wasteful number, since it uses less digits than its factorization.

38799138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923801.

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

The square root of 38799138 is about 6228.8954076947. The cubic root of 38799138 is about 338.5379491951.

The spelling of 38799138 in words is "thirty-eight million, seven hundred ninety-nine thousand, one hundred thirty-eight".