423005265 has 24 divisors (see below), whose sum is σ = 771800640. Its totient is φ = 213728544.

The previous prime is 423005239. The next prime is 423005269. The reversal of 423005265 is 562500324.

It is not a de Polignac number, because 423005265 - 2¹⁵ = 422972497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (423005269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 246517 + ... + 248226.

It is an arithmetic number, because the mean of its divisors is an integer number (32158360).

Almost surely, 2^423005265 is an apocalyptic number.

423005265 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

423005265 is a deficient number, since it is larger than the sum of its proper divisors (348795375).

423005265 is a wasteful number, since it uses less digits than its factorization.

423005265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494773 (or 494770 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 423005265 is about 20567.0917973349. The cubic root of 423005265 is about 750.6691894031.

Adding to 423005265 its reverse (562500324), we get a palindrome (985505589).

The spelling of 423005265 in words is "four hundred twenty-three million, five thousand, two hundred sixty-five".