38133638 has 8 divisors (see below), whose sum is σ = 58417632. Its totient is φ = 18661096.

The previous prime is 38133631. The next prime is 38133673. The reversal of 38133638 is 83633183.

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 = 38133598 and 38133607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38133631) 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, 202745 + ... + 202932.

It is an arithmetic number, because the mean of its divisors is an integer number (7302204).

Almost surely, 2^38133638 is an apocalyptic number.

38133638 is a deficient number, since it is larger than the sum of its proper divisors (20283994).

38133638 is a wasteful number, since it uses less digits than its factorization.

38133638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405726.

The product of its digits is 31104, while the sum is 35.

The square root of 38133638 is about 6175.2439627921. The cubic root of 38133638 is about 336.5911915682.

The spelling of 38133638 in words is "thirty-eight million, one hundred thirty-three thousand, six hundred thirty-eight".