273144560 has 120 divisors (see below), whose sum is σ = 698459760. Its totient is φ = 99280896.

The previous prime is 273144541. The next prime is 273144569. The reversal of 273144560 is 65441372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (273144569) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1203167 + ... + 1203393.

It is an arithmetic number, because the mean of its divisors is an integer number (5820498).

Almost surely, 2^273144560 is an apocalyptic number.

273144560 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 273144560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349229880).

273144560 is an abundant number, since it is smaller than the sum of its proper divisors (425315200).

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

273144560 is a wasteful number, since it uses less digits than its factorization.

273144560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 273144560 is about 16527.0856475060. The cubic root of 273144560 is about 648.8298948855.

The spelling of 273144560 in words is "two hundred seventy-three million, one hundred forty-four thousand, five hundred sixty".