273220 has 24 divisors (see below), whose sum is σ = 604800. Its totient is φ = 103392.

The previous prime is 273193. The next prime is 273233. The reversal of 273220 is 22372.

273220 = T₁₆₀ + T₁₆₁ + ... + T₁₇₈.

It is a happy number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 273194 and 273203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21 + ... + 739.

It is an arithmetic number, because the mean of its divisors is an integer number (25200).

2²⁷³²²⁰ is an apocalyptic number.

273220 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 273220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302400).

273220 is an abundant number, since it is smaller than the sum of its proper divisors (331580).

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

273220 is a wasteful number, since it uses less digits than its factorization.

273220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 745 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 273220 is about 522.7045054330. The cubic root of 273220 is about 64.8889622991. Note that the first 3 decimals are identical.

Adding to 273220 its reverse (22372), we get a palindrome (295592).

The spelling of 273220 in words is "two hundred seventy-three thousand, two hundred twenty", and thus it is an iban number.