243740260 has 12 divisors (see below), whose sum is σ = 511854588. Its totient is φ = 97496096.

The previous prime is 243740251. The next prime is 243740291. The reversal of 243740260 is 62047342.

243740260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 124144164 + 119596096 = 11142^2 + 10936^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6093487 + ... + 6093526.

It is an arithmetic number, because the mean of its divisors is an integer number (42654549).

Almost surely, 2^243740260 is an apocalyptic number.

243740260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243740260 is an abundant number, since it is smaller than the sum of its proper divisors (268114328).

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

243740260 is a wasteful number, since it uses less digits than its factorization.

243740260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12187022 (or 12187020 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 243740260 is about 15612.1830632362. The cubic root of 243740260 is about 624.6581682758.

The spelling of 243740260 in words is "two hundred forty-three million, seven hundred forty thousand, two hundred sixty".