273731328 has 324 divisors, whose sum is σ = 923908440. Its totient is φ = 77635584.

The previous prime is 273731323. The next prime is 273731329. The reversal of 273731328 is 823137372.

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

It is a junction number, because it is equal to n+sod(n) for n = 273731292 and 273731301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (273731323) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7398126 + ... + 7398162.

Almost surely, 2^273731328 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 273731328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (461954220).

273731328 is an abundant number, since it is smaller than the sum of its proper divisors (650177112).

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

273731328 is a wasteful number, since it uses less digits than its factorization.

273731328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 74 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 273731328 is about 16544.8278322864. The cubic root of 273731328 is about 649.2941671492.

The spelling of 273731328 in words is "two hundred seventy-three million, seven hundred thirty-one thousand, three hundred twenty-eight".