38623638 has 16 divisors (see below), whose sum is σ = 77654016. Its totient is φ = 12806760.

The previous prime is 38623633. The next prime is 38623639. The reversal of 38623638 is 83632683.

38623638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 38623596 and 38623605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38623633) 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, 15706 + ... + 17997.

It is an arithmetic number, because the mean of its divisors is an integer number (4853376).

Almost surely, 2^38623638 is an apocalyptic number.

38623638 is an abundant number, since it is smaller than the sum of its proper divisors (39030378).

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

38623638 is a wasteful number, since it uses less digits than its factorization.

38623638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33899.

The product of its digits is 124416, while the sum is 39.

The square root of 38623638 is about 6214.7918710123. The cubic root of 38623638 is about 338.0267418124.

The spelling of 38623638 in words is "thirty-eight million, six hundred twenty-three thousand, six hundred thirty-eight".