423320293 has 16 divisors (see below), whose sum is σ = 475943616. Its totient is φ = 373127040.

The previous prime is 423320239. The next prime is 423320299. The reversal of 423320293 is 392023324.

It is not a de Polignac number, because 423320293 - 2²⁵ = 389765861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423320299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125730 + ... + 129052.

It is an arithmetic number, because the mean of its divisors is an integer number (29746476).

Almost surely, 2^423320293 is an apocalyptic number.

It is an amenable number.

423320293 is a deficient number, since it is larger than the sum of its proper divisors (52623323).

423320293 is a wasteful number, since it uses less digits than its factorization.

423320293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3684.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 423320293 is about 20574.7489170585. The cubic root of 423320293 is about 750.8554937289.

The spelling of 423320293 in words is "four hundred twenty-three million, three hundred twenty thousand, two hundred ninety-three".