273308240 has 20 divisors (see below), whose sum is σ = 635441844. Its totient is φ = 109323264.

The previous prime is 273308239. The next prime is 273308249. The reversal of 273308240 is 42803372.

It can be written as a sum of positive squares in 2 ways, for example, as 110082064 + 163226176 = 10492^2 + 12776^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (273308249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1708097 + ... + 1708256.

Almost surely, 2^273308240 is an apocalyptic number.

273308240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

273308240 is an abundant number, since it is smaller than the sum of its proper divisors (362133604).

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

273308240 is a wasteful number, since it uses less digits than its factorization.

273308240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3416366 (or 3416360 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 273308240 is about 16532.0367771185. The cubic root of 273308240 is about 648.9594712912.

The spelling of 273308240 in words is "two hundred seventy-three million, three hundred eight thousand, two hundred forty".