3944928 has 96 divisors (see below), whose sum is σ = 11642400. Its totient is φ = 1161216.

The previous prime is 3944921. The next prime is 3944933. The reversal of 3944928 is 8294493.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3944921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36138 + ... + 36246.

It is an arithmetic number, because the mean of its divisors is an integer number (121275).

Almost surely, 2^3944928 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 3944928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5821200).

3944928 is an abundant number, since it is smaller than the sum of its proper divisors (7697472).

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

3944928 is a wasteful number, since it uses less digits than its factorization.

3944928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 156 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 3944928 is about 1986.1842814804. The cubic root of 3944928 is about 158.0082247494.

The spelling of 3944928 in words is "three million, nine hundred forty-four thousand, nine hundred twenty-eight".