243690734 has 16 divisors (see below), whose sum is σ = 419238528. Its totient is φ = 104068152.

The previous prime is 243690731. The next prime is 243690743. The reversal of 243690734 is 437096342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243690731) 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, 26792 + ... + 34715.

It is an arithmetic number, because the mean of its divisors is an integer number (26202408).

Almost surely, 2^243690734 is an apocalyptic number.

243690734 is a deficient number, since it is larger than the sum of its proper divisors (175547794).

243690734 is a wasteful number, since it uses less digits than its factorization.

243690734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61799.

The product of its (nonzero) digits is 108864, while the sum is 38.

The square root of 243690734 is about 15610.5968495763. The cubic root of 243690734 is about 624.6158569563.

The spelling of 243690734 in words is "two hundred forty-three million, six hundred ninety thousand, seven hundred thirty-four".