140220 has 72 divisors (see below), whose sum is σ = 458640. Its totient is φ = 34560.

The previous prime is 140207. The next prime is 140221. The reversal of 140220 is 22041.

140220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 140220.

It is not an unprimeable number, because it can be changed into a prime (140221) by changing a digit.

140220 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3400 + ... + 3440.

It is an arithmetic number, because the mean of its divisors is an integer number (6370).

2¹⁴⁰²²⁰ is an apocalyptic number.

140220 is a gapful number since it is divisible by the number (10) 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 140220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229320).

140220 is an abundant number, since it is smaller than the sum of its proper divisors (318420).

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

140220 is a wasteful number, since it uses less digits than its factorization.

140220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 140220 is about 374.4596106391. The cubic root of 140220 is about 51.9521255626.

Adding to 140220 its reverse (22041), we get a palindrome (162261).

The spelling of 140220 in words is "one hundred forty thousand, two hundred twenty", and thus it is an iban number.