273281472 has 112 divisors (see below), whose sum is σ = 809061120. Its totient is φ = 90452736.

The previous prime is 273281431. The next prime is 273281479. The reversal of 273281472 is 274182372.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (273281479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288103 + ... + 289049.

It is an arithmetic number, because the mean of its divisors is an integer number (7223760).

Almost surely, 2^273281472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 273281472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (404530560).

273281472 is an abundant number, since it is smaller than the sum of its proper divisors (535779648).

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

273281472 is a wasteful number, since it uses less digits than its factorization.

273281472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135 (or 1119 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 273281472 is about 16531.2271776780. The cubic root of 273281472 is about 648.9382840848.

The spelling of 273281472 in words is "two hundred seventy-three million, two hundred eighty-one thousand, four hundred seventy-two".