605243140 has 24 divisors (see below), whose sum is σ = 1284117912. Its totient is φ = 239600640.

The previous prime is 605243131. The next prime is 605243143. The reversal of 605243140 is 41342506.

It can be written as a sum of positive squares in 4 ways, for example, as 41370624 + 563872516 = 6432^2 + 23746^2 .

It is not an unprimeable number, because it can be changed into a prime (605243143) 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, 154051 + ... + 157930.

It is an arithmetic number, because the mean of its divisors is an integer number (53504913).

Almost surely, 2^605243140 is an apocalyptic number.

It is an amenable number.

605243140 is an abundant number, since it is smaller than the sum of its proper divisors (678874772).

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

605243140 is a wasteful number, since it uses less digits than its factorization.

605243140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312087 (or 312085 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 605243140 is about 24601.6897793627. The cubic root of 605243140 is about 845.8823410713.

Adding to 605243140 its reverse (41342506), we get a palindrome (646585646).

The spelling of 605243140 in words is "six hundred five million, two hundred forty-three thousand, one hundred forty".