202240 has 40 divisors (see below), whose sum is σ = 491040. Its totient is φ = 79872.

The previous prime is 202231. The next prime is 202243. The reversal of 202240 is 42202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2521 + ... + 2599.

It is an arithmetic number, because the mean of its divisors is an integer number (12276).

2²⁰²²⁴⁰ is an apocalyptic number.

202240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245520).

202240 is an abundant number, since it is smaller than the sum of its proper divisors (288800).

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

202240 is an frugal number, since it uses more digits than its factorization.

202240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 202240 is about 449.7110183218. The cubic root of 202240 is about 58.6978713699.

Adding to 202240 its reverse (42202), we get a palindrome (244442).

The spelling of 202240 in words is "two hundred two thousand, two hundred forty", and thus it is an iban number.