243948634 has 12 divisors (see below), whose sum is σ = 367342794. Its totient is φ = 121502744.

The previous prime is 243948629. The next prime is 243948671. The reversal of 243948634 is 436849342.

243948634 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 243828225 + 120409 = 15615^2 + 347^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 240312 + ... + 241324.

Almost surely, 2^243948634 is an apocalyptic number.

243948634 is a deficient number, since it is larger than the sum of its proper divisors (123394160).

243948634 is an equidigital number, since it uses as much as digits as its factorization.

243948634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709 (or 1362 counting only the distinct ones).

The product of its digits is 497664, while the sum is 43.

The square root of 243948634 is about 15618.8550796785. The cubic root of 243948634 is about 624.8361247156.

The spelling of 243948634 in words is "two hundred forty-three million, nine hundred forty-eight thousand, six hundred thirty-four".