38693928 has 96 divisors (see below), whose sum is σ = 121232160. Its totient is φ = 10200960.

The previous prime is 38693923. The next prime is 38693929. The reversal of 38693928 is 82939683.

It is not an unprimeable number, because it can be changed into a prime (38693923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14023 + ... + 16553.

It is an arithmetic number, because the mean of its divisors is an integer number (1262835).

Almost surely, 2^38693928 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 38693928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60616080).

38693928 is an abundant number, since it is smaller than the sum of its proper divisors (82538232).

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

38693928 is a wasteful number, since it uses less digits than its factorization.

38693928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2567 (or 2556 counting only the distinct ones).

The product of its digits is 559872, while the sum is 48.

The square root of 38693928 is about 6220.4443571179. Note that the first 3 decimals coincide. The cubic root of 38693928 is about 338.2316724555.

It can be divided in two parts, 38693 and 928, that added together give a triangular number (39621 = T₂₈₁).

The spelling of 38693928 in words is "thirty-eight million, six hundred ninety-three thousand, nine hundred twenty-eight".