38773728 has 120 divisors (see below), whose sum is σ = 130383792. Its totient is φ = 11073024.

The previous prime is 38773717. The next prime is 38773733. The reversal of 38773728 is 82737783.

38773728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

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 19 ways as a sum of consecutive naturals, for example, 17076 + ... + 19212.

Almost surely, 2^38773728 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 38773728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65191896).

38773728 is an abundant number, since it is smaller than the sum of its proper divisors (91610064).

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

38773728 is a wasteful number, since it uses less digits than its factorization.

38773728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166 (or 2149 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 38773728 is about 6226.8553861480. The cubic root of 38773728 is about 338.4640289285.

The spelling of 38773728 in words is "thirty-eight million, seven hundred seventy-three thousand, seven hundred twenty-eight".