4273728 has 28 divisors (see below), whose sum is σ = 11308080. Its totient is φ = 1424512.

The previous prime is 4273693. The next prime is 4273739. The reversal of 4273728 is 8273724.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10938 + ... + 11321.

It is an arithmetic number, because the mean of its divisors is an integer number (403860).

Almost surely, 2^4273728 is an apocalyptic number.

4273728 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

4273728 is an abundant number, since it is smaller than the sum of its proper divisors (7034352).

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

4273728 is a wasteful number, since it uses less digits than its factorization.

4273728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22274 (or 22264 counting only the distinct ones).

The product of its digits is 18816, while the sum is 33.

The square root of 4273728 is about 2067.2996879988. The cubic root of 4273728 is about 162.2814798491.

The spelling of 4273728 in words is "four million, two hundred seventy-three thousand, seven hundred twenty-eight".