202223142 has 80 divisors (see below), whose sum is σ = 497420352. Its totient is φ = 61148520.

The previous prime is 202223141. The next prime is 202223159. The reversal of 202223142 is 241322202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202223141) 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 39 ways as a sum of consecutive naturals, for example, 432793 + ... + 433259.

Almost surely, 2^202223142 is an apocalyptic number.

202223142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 202223142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248710176).

202223142 is an abundant number, since it is smaller than the sum of its proper divisors (295197210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202223142 is an frugal number, since it uses more digits than its factorization.

202223142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 483 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 202223142 is about 14220.5183449831. The cubic root of 202223142 is about 586.9624037671.

Adding to 202223142 its reverse (241322202), we get a palindrome (443545344).

The spelling of 202223142 in words is "two hundred two million, two hundred twenty-three thousand, one hundred forty-two".