273203916340 has 24 divisors (see below), whose sum is σ = 579642952392. Its totient is φ = 108154951680.

The previous prime is 273203916287. The next prime is 273203916341. The reversal of 273203916340 is 43619302372.

It can be written as a sum of positive squares in 4 ways, for example, as 40335902244 + 232868014096 = 200838^2 + 482564^2 .

It is a junction number, because it is equal to n+sod(n) for n = 273203916293 and 273203916302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (273203916341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70411441 + ... + 70415320.

It is an arithmetic number, because the mean of its divisors is an integer number (24151789683).

Almost surely, 2^273203916340 is an apocalyptic number.

273203916340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

273203916340 is an abundant number, since it is smaller than the sum of its proper divisors (306439036052).

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

273203916340 is a wasteful number, since it uses less digits than its factorization.

273203916340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140826867 (or 140826865 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 40.

The spelling of 273203916340 in words is "two hundred seventy-three billion, two hundred three million, nine hundred sixteen thousand, three hundred forty".