38723828 has 24 divisors (see below), whose sum is σ = 79615200. Its totient is φ = 16247520.

The previous prime is 38723821. The next prime is 38723831. The reversal of 38723828 is 82832783.

38723828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38723821) 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, 33278 + ... + 34421.

It is an arithmetic number, because the mean of its divisors is an integer number (3317300).

Almost surely, 2^38723828 is an apocalyptic number.

It is an amenable number.

38723828 is an abundant number, since it is smaller than the sum of its proper divisors (40891372).

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

38723828 is a wasteful number, since it uses less digits than its factorization.

38723828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67727 (or 67725 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 38723828 is about 6222.8472582894. The cubic root of 38723828 is about 338.3187707311.

The spelling of 38723828 in words is "thirty-eight million, seven hundred twenty-three thousand, eight hundred twenty-eight".