38131836 has 24 divisors (see below), whose sum is σ = 89841024. Its totient is φ = 12586800.

The previous prime is 38131831. The next prime is 38131837. The reversal of 38131836 is 63813183.

It is a happy number.

38131836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 38131797 and 38131806.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14190 + ... + 16661.

It is an arithmetic number, because the mean of its divisors is an integer number (3743376).

Almost surely, 2^38131836 is an apocalyptic number.

It is an amenable number.

38131836 is an abundant number, since it is smaller than the sum of its proper divisors (51709188).

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

38131836 is a wasteful number, since it uses less digits than its factorization.

38131836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30961 (or 30959 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 38131836 is about 6175.0980559016. The cubic root of 38131836 is about 336.5858896273.

The spelling of 38131836 in words is "thirty-eight million, one hundred thirty-one thousand, eight hundred thirty-six".