4393928 has 48 divisors (see below), whose sum is σ = 10465200. Its totient is φ = 1710240.

The previous prime is 4393919. The next prime is 4393933. The reversal of 4393928 is 8293934.

It is a d-powerful number, because it can be written as 4¹¹ + 3⁹ + 9 + 3¹¹ + 9³ + 2¹¹ + 8 .

It is a junction number, because it is equal to n+sod(n) for n = 4393891 and 4393900.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3803 + ... + 4821.

It is an arithmetic number, because the mean of its divisors is an integer number (218025).

Almost surely, 2^4393928 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 4393928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5232600).

4393928 is an abundant number, since it is smaller than the sum of its proper divisors (6071272).

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

4393928 is a wasteful number, since it uses less digits than its factorization.

4393928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050 (or 1039 counting only the distinct ones).

The product of its digits is 46656, while the sum is 38.

The square root of 4393928 is about 2096.1698404471. The cubic root of 4393928 is about 163.7888418630.

It can be divided in two parts, 4393 and 928, that multiplied together give a palindrome (4076704).

The spelling of 4393928 in words is "four million, three hundred ninety-three thousand, nine hundred twenty-eight".