4023225 has 18 divisors (see below), whose sum is σ = 7206446. Its totient is φ = 2145600.

The previous prime is 4023223. The next prime is 4023241. The reversal of 4023225 is 5223204.

It can be written as a sum of positive squares in 3 ways, for example, as 138384 + 3884841 = 372^2 + 1971^2 .

It is not a de Polignac number, because 4023225 - 2¹ = 4023223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4023198 and 4023207.

It is not an unprimeable number, because it can be changed into a prime (4023221) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8716 + ... + 9165.

Almost surely, 2^4023225 is an apocalyptic number.

4023225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4023225 is a deficient number, since it is larger than the sum of its proper divisors (3183221).

4023225 is a wasteful number, since it uses less digits than its factorization.

4023225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17897 (or 17889 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 4023225 is about 2005.7978462447. The cubic root of 4023225 is about 159.0467407381.

Adding to 4023225 its reverse (5223204), we get a palindrome (9246429).

The spelling of 4023225 in words is "four million, twenty-three thousand, two hundred twenty-five".