3843928 has 48 divisors (see below), whose sum is σ = 8366760. Its totient is φ = 1655280.

The previous prime is 3843923. The next prime is 3843937. The reversal of 3843928 is 8293483.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

Its product of digits (41472) is a multiple of the sum of its prime divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3843923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202303 + ... + 202321.

Almost surely, 2^3843928 is an apocalyptic number.

3843928 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3843928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4183380).

3843928 is an abundant number, since it is smaller than the sum of its proper divisors (4522832).

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

3843928 is a wasteful number, since it uses less digits than its factorization.

3843928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77 (or 32 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 3843928 is about 1960.5937876062. The cubic root of 3843928 is about 156.6480818958.

It can be divided in two parts, 384392 and 8, that added together give a square (384400 = 620²).

The spelling of 3843928 in words is "three million, eight hundred forty-three thousand, nine hundred twenty-eight".