202304423 has 4 divisors (see below), whose sum is σ = 205323960. Its totient is φ = 199284888.

The previous prime is 202304411. The next prime is 202304447. The reversal of 202304423 is 324403202.

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

It is a cyclic number.

It is not a de Polignac number, because 202304423 - 2⁴ = 202304407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202304395 and 202304404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202304023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1509668 + ... + 1509801.

It is an arithmetic number, because the mean of its divisors is an integer number (51330990).

Almost surely, 2^202304423 is an apocalyptic number.

202304423 is a deficient number, since it is larger than the sum of its proper divisors (3019537).

202304423 is an equidigital number, since it uses as much as digits as its factorization.

202304423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3019536.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 202304423 is about 14223.3759354100. The cubic root of 202304423 is about 587.0410339050.

Adding to 202304423 its reverse (324403202), we get a palindrome (526707625).

The spelling of 202304423 in words is "two hundred two million, three hundred four thousand, four hundred twenty-three".