3930828 has 48 divisors (see below), whose sum is σ = 10141824. Its totient is φ = 1175040.

The previous prime is 3930827. The next prime is 3930841. The reversal of 3930828 is 8280393.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3930827) 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, 12651 + ... + 12957.

It is an arithmetic number, because the mean of its divisors is an integer number (211288).

Almost surely, 2^3930828 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 3930828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5070912).

3930828 is an abundant number, since it is smaller than the sum of its proper divisors (6210996).

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

3930828 is a wasteful number, since it uses less digits than its factorization.

3930828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 3930828 is about 1982.6315845361. The cubic root of 3930828 is about 157.8197485087.

Adding to 3930828 its reverse (8280393), we get a palindrome (12211221).

The spelling of 3930828 in words is "three million, nine hundred thirty thousand, eight hundred twenty-eight".