423045225 has 18 divisors (see below), whose sum is σ = 757721406. Its totient is φ = 225624000.

The previous prime is 423045197. The next prime is 423045307. The reversal of 423045225 is 522540324.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2601 + 423042624 = 51^2 + 20568^2 .

It is not a de Polignac number, because 423045225 - 2¹⁴ = 423028841 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 939876 + ... + 940325.

Almost surely, 2^423045225 is an apocalyptic number.

423045225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

423045225 is a deficient number, since it is larger than the sum of its proper divisors (334676181).

423045225 is a wasteful number, since it uses less digits than its factorization.

423045225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880217 (or 1880209 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 423045225 is about 20568.0632291910. The cubic root of 423045225 is about 750.6928264583.

Adding to 423045225 its reverse (522540324), we get a palindrome (945585549).

It can be divided in two parts, 4230 and 45225, that added together give a triangular number (49455 = T₃₁₄).

The spelling of 423045225 in words is "four hundred twenty-three million, forty-five thousand, two hundred twenty-five".