243772734 has 16 divisors (see below), whose sum is σ = 488157840. Its totient is φ = 81155520.

The previous prime is 243772729. The next prime is 243772783. The reversal of 243772734 is 437277342.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 243772692 and 243772701.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20257 + ... + 29964.

It is an arithmetic number, because the mean of its divisors is an integer number (30509865).

Almost surely, 2^243772734 is an apocalyptic number.

243772734 is an abundant number, since it is smaller than the sum of its proper divisors (244385106).

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

243772734 is a wasteful number, since it uses less digits than its factorization.

243772734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51035.

The product of its digits is 197568, while the sum is 39.

The square root of 243772734 is about 15613.2230497101. The cubic root of 243772734 is about 624.6859085276.

The spelling of 243772734 in words is "two hundred forty-three million, seven hundred seventy-two thousand, seven hundred thirty-four".