243874634 has 16 divisors (see below), whose sum is σ = 378867456. Its totient is φ = 117658800.

The previous prime is 243874627. The next prime is 243874643. The reversal of 243874634 is 436478342.

It is a happy number.

243874634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 243874591 and 243874600.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11597 + ... + 24944.

It is an arithmetic number, because the mean of its divisors is an integer number (23679216).

Almost surely, 2^243874634 is an apocalyptic number.

243874634 is a deficient number, since it is larger than the sum of its proper divisors (134992822).

243874634 is a wasteful number, since it uses less digits than its factorization.

243874634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36661.

The product of its digits is 387072, while the sum is 41.

The square root of 243874634 is about 15616.4859683605. The cubic root of 243874634 is about 624.7729385323.

The spelling of 243874634 in words is "two hundred forty-three million, eight hundred seventy-four thousand, six hundred thirty-four".