39228828 has 12 divisors (see below), whose sum is σ = 91533960. Its totient is φ = 13076272.

The previous prime is 39228811. The next prime is 39228829. The reversal of 39228828 is 82882293.

39228828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 39228828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39228829) by changing a digit.

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, 1634523 + ... + 1634546.

It is an arithmetic number, because the mean of its divisors is an integer number (7627830).

Almost surely, 2^39228828 is an apocalyptic number.

It is an amenable number.

39228828 is an abundant number, since it is smaller than the sum of its proper divisors (52305132).

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

39228828 is a wasteful number, since it uses less digits than its factorization.

39228828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3269076 (or 3269074 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The square root of 39228828 is about 6263.2921055943. The cubic root of 39228828 is about 339.7831027246.

The spelling of 39228828 in words is "thirty-nine million, two hundred twenty-eight thousand, eight hundred twenty-eight".