38665536 has 112 divisors (see below), whose sum is σ = 125967744. Its totient is φ = 10192896.

The previous prime is 38665511. The next prime is 38665541. The reversal of 38665536 is 63556683.

38665536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 16366 + ... + 18578.

It is an arithmetic number, because the mean of its divisors is an integer number (1124712).

Almost surely, 2^38665536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38665536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62983872).

38665536 is an abundant number, since it is smaller than the sum of its proper divisors (87302208).

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

38665536 is a wasteful number, since it uses less digits than its factorization.

38665536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248 (or 2238 counting only the distinct ones).

The product of its digits is 388800, while the sum is 42.

The square root of 38665536 is about 6218.1617862516. The cubic root of 38665536 is about 338.1489254211.

The spelling of 38665536 in words is "thirty-eight million, six hundred sixty-five thousand, five hundred thirty-six".