38631838 has 16 divisors (see below), whose sum is σ = 67636224. Its totient is φ = 16203960.

The previous prime is 38631833. The next prime is 38631841. The reversal of 38631838 is 83813683.

It is a self number, because there is not a number n which added to its sum of digits gives 38631838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38631833) 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, 28698 + ... + 30013.

It is an arithmetic number, because the mean of its divisors is an integer number (4227264).

Almost surely, 2^38631838 is an apocalyptic number.

38631838 is a deficient number, since it is larger than the sum of its proper divisors (29004386).

38631838 is a wasteful number, since it uses less digits than its factorization.

38631838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58767.

The product of its digits is 82944, while the sum is 40.

The square root of 38631838 is about 6215.4515523814. The cubic root of 38631838 is about 338.0506617337.

The spelling of 38631838 in words is "thirty-eight million, six hundred thirty-one thousand, eight hundred thirty-eight".