423040273 has 4 divisors (see below), whose sum is σ = 423134388. Its totient is φ = 422946160.

The previous prime is 423040271. The next prime is 423040297. The reversal of 423040273 is 372040324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39350529 + 383689744 = 6273^2 + 19588^2 .

It is a cyclic number.

It is not a de Polignac number, because 423040273 - 2¹ = 423040271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423040271) 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 3 ways as a sum of consecutive naturals, for example, 39958 + ... + 49423.

It is an arithmetic number, because the mean of its divisors is an integer number (105783597).

Almost surely, 2^423040273 is an apocalyptic number.

It is an amenable number.

423040273 is a deficient number, since it is larger than the sum of its proper divisors (94115).

423040273 is an equidigital number, since it uses as much as digits as its factorization.

423040273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94114.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 423040273 is about 20567.9428480342. The cubic root of 423040273 is about 750.6898973424.

Adding to 423040273 its reverse (372040324), we get a palindrome (795080597).

The spelling of 423040273 in words is "four hundred twenty-three million, forty thousand, two hundred seventy-three".