243728774 has 8 divisors (see below), whose sum is σ = 366185640. Its totient is φ = 121666896.

The previous prime is 243728767. The next prime is 243728783. The reversal of 243728774 is 477827342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97199 + ... + 99674.

It is an arithmetic number, because the mean of its divisors is an integer number (45773205).

Almost surely, 2^243728774 is an apocalyptic number.

243728774 is a deficient number, since it is larger than the sum of its proper divisors (122456866).

243728774 is a wasteful number, since it uses less digits than its factorization.

243728774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197494.

The product of its digits is 526848, while the sum is 44.

The square root of 243728774 is about 15611.8152051579. The cubic root of 243728774 is about 624.6483560048.

The spelling of 243728774 in words is "two hundred forty-three million, seven hundred twenty-eight thousand, seven hundred seventy-four".