243828428 has 24 divisors (see below), whose sum is σ = 447068160. Its totient is φ = 116138000.

The previous prime is 243828427. The next prime is 243828439. The reversal of 243828428 is 824828342.

It is not an unprimeable number, because it can be changed into a prime (243828427) 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, 17813 + ... + 28371.

It is an arithmetic number, because the mean of its divisors is an integer number (18627840).

Almost surely, 2^243828428 is an apocalyptic number.

It is an amenable number.

243828428 is a deficient number, since it is larger than the sum of its proper divisors (203239732).

243828428 is a wasteful number, since it uses less digits than its factorization.

243828428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10837 (or 10835 counting only the distinct ones).

The product of its digits is 196608, while the sum is 41.

The square root of 243828428 is about 15615.0065001587. The cubic root of 243828428 is about 624.7334782553.

The spelling of 243828428 in words is "two hundred forty-three million, eight hundred twenty-eight thousand, four hundred twenty-eight".