273240 has 128 divisors (see below), whose sum is σ = 1036800. Its totient is φ = 63360.

The previous prime is 273233. The next prime is 273253. The reversal of 273240 is 42372.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11869 + ... + 11891.

It is an arithmetic number, because the mean of its divisors is an integer number (8100).

2²⁷³²⁴⁰ is an apocalyptic number.

273240 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 273240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (518400).

273240 is an abundant number, since it is smaller than the sum of its proper divisors (763560).

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

273240 is a wasteful number, since it uses less digits than its factorization.

273240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54 (or 44 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 273240 is about 522.7236363510. The cubic root of 273240 is about 64.8905455746.

It can be divided in two parts, 2732 and 40, that added together give a palindrome (2772).

The spelling of 273240 in words is "two hundred seventy-three thousand, two hundred forty", and thus it is an iban number.