4068225 has 90 divisors (see below), whose sum is σ = 8979894. Its totient is φ = 1814400.

The previous prime is 4068221. The next prime is 4068241. The reversal of 4068225 is 5228604.

It can be written as a sum of positive squares in 3 ways, for example, as 3969 + 4064256 = 63^2 + 2016^2 .

It is not a de Polignac number, because 4068225 - 2² = 4068221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4068221) by changing a digit.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 99205 + ... + 99245.

Almost surely, 2^4068225 is an apocalyptic number.

4068225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4068225 is an abundant number, since it is smaller than the sum of its proper divisors (4911669).

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

4068225 is a wasteful number, since it uses less digits than its factorization.

4068225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77 (or 56 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 4068225 is about 2016.9841347913. The cubic root of 4068225 is about 159.6375258021.

It can be divided in two parts, 40 and 68225, that added together give a triangular number (68265 = T₃₆₉).

The spelling of 4068225 in words is "four million, sixty-eight thousand, two hundred twenty-five".