38131838 has 8 divisors (see below), whose sum is σ = 59684688. Its totient is φ = 18236944.

The previous prime is 38131837. The next prime is 38131853. The reversal of 38131838 is 83813183.

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

It is a junction number, because it is equal to n+sod(n) for n = 38131798 and 38131807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38131831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414431 + ... + 414522.

It is an arithmetic number, because the mean of its divisors is an integer number (7460586).

Almost surely, 2^38131838 is an apocalyptic number.

38131838 is a deficient number, since it is larger than the sum of its proper divisors (21552850).

38131838 is a wasteful number, since it uses less digits than its factorization.

38131838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828978.

The product of its digits is 13824, while the sum is 35.

The square root of 38131838 is about 6175.0982178424. The cubic root of 38131838 is about 336.5858955119.

The spelling of 38131838 in words is "thirty-eight million, one hundred thirty-one thousand, eight hundred thirty-eight".