38533728 has 24 divisors (see below), whose sum is σ = 101151288. Its totient is φ = 12844544.

The previous prime is 38533723. The next prime is 38533753. The reversal of 38533728 is 82733583.

38533728 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 (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38533723) 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 3 ways as a sum of consecutive naturals, for example, 200601 + ... + 200792.

It is an arithmetic number, because the mean of its divisors is an integer number (4214637).

Almost surely, 2^38533728 is an apocalyptic number.

It is an amenable number.

38533728 is an abundant number, since it is smaller than the sum of its proper divisors (62617560).

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

38533728 is a wasteful number, since it uses less digits than its factorization.

38533728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401406 (or 401398 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 38533728 is about 6207.5541076981. The cubic root of 38533728 is about 337.7642462775.

The spelling of 38533728 in words is "thirty-eight million, five hundred thirty-three thousand, seven hundred twenty-eight".