4028956 has 12 divisors (see below), whose sum is σ = 7357392. Its totient is φ = 1926848.

The previous prime is 4028953. The next prime is 4028963. The reversal of 4028956 is 6598204.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4028953) 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, 21805 + ... + 21988.

It is an arithmetic number, because the mean of its divisors is an integer number (613116).

Almost surely, 2^4028956 is an apocalyptic number.

4028956 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

4028956 is a deficient number, since it is larger than the sum of its proper divisors (3328436).

4028956 is a wasteful number, since it uses less digits than its factorization.

4028956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43820 (or 43818 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 4028956 is about 2007.2259464246. The cubic root of 4028956 is about 159.1222244947.

The spelling of 4028956 in words is "four million, twenty-eight thousand, nine hundred fifty-six".