243102738 has 16 divisors (see below), whose sum is σ = 489470400. Its totient is φ = 80490096.

The previous prime is 243102731. The next prime is 243102749. The reversal of 243102738 is 837201342.

It is not an unprimeable number, because it can be changed into a prime (243102731) 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, 135070 + ... + 136857.

It is an arithmetic number, because the mean of its divisors is an integer number (30591900).

Almost surely, 2^243102738 is an apocalyptic number.

243102738 is an abundant number, since it is smaller than the sum of its proper divisors (246367662).

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

243102738 is a wasteful number, since it uses less digits than its factorization.

243102738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272081.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 243102738 is about 15591.7522427725. The cubic root of 243102738 is about 624.1130784142.

The spelling of 243102738 in words is "two hundred forty-three million, one hundred two thousand, seven hundred thirty-eight".