7940828 has 12 divisors (see below), whose sum is σ = 15881712. Its totient is φ = 3403200.

The previous prime is 7940813. The next prime is 7940833. The reversal of 7940828 is 8280497.

7940828 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 7940791 and 7940800.

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 3 ways as a sum of consecutive naturals, for example, 141773 + ... + 141828.

It is an arithmetic number, because the mean of its divisors is an integer number (1323476).

Almost surely, 2^7940828 is an apocalyptic number.

It is an amenable number.

7940828 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7940828 is a wasteful number, since it uses less digits than its factorization.

7940828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283612 (or 283610 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 7940828 is about 2817.9474799932. The cubic root of 7940828 is about 199.5056792415.

The spelling of 7940828 in words is "seven million, nine hundred forty thousand, eight hundred twenty-eight".