273305016 has 144 divisors (see below), whose sum is σ = 793578240. Its totient is φ = 88179840.

The previous prime is 273304991. The next prime is 273305029. The reversal of 273305016 is 610503372.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2151945 + ... + 2152071.

It is an arithmetic number, because the mean of its divisors is an integer number (5510960).

Almost surely, 2^273305016 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 273305016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396789120).

273305016 is an abundant number, since it is smaller than the sum of its proper divisors (520273224).

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

273305016 is an equidigital number, since it uses as much as digits as its factorization.

273305016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 273305016 is about 16531.9392691844. The cubic root of 273305016 is about 648.9569195282.

Adding to 273305016 its reverse (610503372), we get a palindrome (883808388).

The spelling of 273305016 in words is "two hundred seventy-three million, three hundred five thousand, sixteen".