202022423 has 8 divisors (see below), whose sum is σ = 205589520. Its totient is φ = 198463680.

The previous prime is 202022399. The next prime is 202022467. The reversal of 202022423 is 324220202.

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

It is a cyclic number.

It is not a de Polignac number, because 202022423 - 2²² = 197828119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202022473) 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 7 ways as a sum of consecutive naturals, for example, 65408 + ... + 68426.

It is an arithmetic number, because the mean of its divisors is an integer number (25698690).

Almost surely, 2^202022423 is an apocalyptic number.

202022423 is a deficient number, since it is larger than the sum of its proper divisors (3567097).

202022423 is a wasteful number, since it uses less digits than its factorization.

202022423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4177.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 202022423 is about 14213.4592200491. The cubic root of 202022423 is about 586.7681406272.

Adding to 202022423 its reverse (324220202), we get a palindrome (526242625).

The spelling of 202022423 in words is "two hundred two million, twenty-two thousand, four hundred twenty-three".