4072225 has 6 divisors (see below), whose sum is σ = 5049590. Its totient is φ = 3257760.

The previous prime is 4072223. The next prime is 4072249. The reversal of 4072225 is 5222704.

It can be written as a sum of positive squares in 3 ways, for example, as 88209 + 3984016 = 297^2 + 1996^2 .

It is not a de Polignac number, because 4072225 - 2¹ = 4072223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4072196 and 4072205.

It is not an unprimeable number, because it can be changed into a prime (4072223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 81420 + ... + 81469.

Almost surely, 2^4072225 is an apocalyptic number.

It is an amenable number.

4072225 is a deficient number, since it is larger than the sum of its proper divisors (977365).

4072225 is a wasteful number, since it uses less digits than its factorization.

4072225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162899 (or 162894 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 4072225 is about 2017.9754706141. The cubic root of 4072225 is about 159.6898287874.

Adding to 4072225 its reverse (5222704), we get a palindrome (9294929).

The spelling of 4072225 in words is "four million, seventy-two thousand, two hundred twenty-five".