243992948 has 12 divisors (see below), whose sum is σ = 438528132. Its totient is φ = 118699200.

The previous prime is 243992929. The next prime is 243992951. The reversal of 243992948 is 849299342.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 229764964 + 14227984 = 15158^2 + 3772^2 .

It is a junction number, because it is equal to n+sod(n) for n = 243992896 and 243992905.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 824153 + ... + 824448.

It is an arithmetic number, because the mean of its divisors is an integer number (36544011).

Almost surely, 2^243992948 is an apocalyptic number.

It is an amenable number.

243992948 is a deficient number, since it is larger than the sum of its proper divisors (194535184).

243992948 is a wasteful number, since it uses less digits than its factorization.

243992948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648642 (or 1648640 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 50.

The square root of 243992948 is about 15620.2736211630. The cubic root of 243992948 is about 624.8739568761.

The spelling of 243992948 in words is "two hundred forty-three million, nine hundred ninety-two thousand, nine hundred forty-eight".