202423 has 8 divisors (see below), whose sum is σ = 227808. Its totient is φ = 178464.

The previous prime is 202409. The next prime is 202441. The reversal of 202423 is 324202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 202423 - 2⁹ = 201911 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40 + ... + 637.

It is an arithmetic number, because the mean of its divisors is an integer number (28476).

2²⁰²⁴²³ is an apocalyptic number.

202423 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

202423 is a deficient number, since it is larger than the sum of its proper divisors (25385).

202423 is a wasteful number, since it uses less digits than its factorization.

202423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 202423 is about 449.9144363098. The cubic root of 202423 is about 58.7155705922.

Adding to 202423 its reverse (324202), we get a palindrome (526625).

It can be divided in two parts, 20242 and 3, that multiplied together give a triangular number (60726 = T₃₄₈).

The spelling of 202423 in words is "two hundred two thousand, four hundred twenty-three", and thus it is an iban number.