4223872 has 16 divisors (see below), whose sum is σ = 8415000. Its totient is φ = 2111872.

The previous prime is 4223839. The next prime is 4223873. The reversal of 4223872 is 2783224.

It is a tau number, because it is divible by the number of its divisors (16).

It is a pancake number, because a pancake can be divided into 4223872 parts by 2906 straight cuts.

It is a self number, because there is not a number n which added to its sum of digits gives 4223872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4223873) by changing a digit.

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 as a sum of consecutive naturals, namely, 16372 + ... + 16627.

Almost surely, 2^4223872 is an apocalyptic number.

It is an amenable number.

4223872 is a deficient number, since it is larger than the sum of its proper divisors (4191128).

4223872 is an equidigital number, since it uses as much as digits as its factorization.

4223872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33013 (or 33001 counting only the distinct ones).

The product of its digits is 5376, while the sum is 28.

The square root of 4223872 is about 2055.2060723927. The cubic root of 4223872 is about 161.6479679841.

The spelling of 4223872 in words is "four million, two hundred twenty-three thousand, eight hundred seventy-two".