242688634 has 32 divisors (see below), whose sum is σ = 408006720. Its totient is φ = 107589888.

The previous prime is 242688629. The next prime is 242688647. The reversal of 242688634 is 436886242.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126309 + ... + 128215.

It is an arithmetic number, because the mean of its divisors is an integer number (12750210).

Almost surely, 2^242688634 is an apocalyptic number.

242688634 is a deficient number, since it is larger than the sum of its proper divisors (165318086).

242688634 is a wasteful number, since it uses less digits than its factorization.

242688634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142.

The product of its digits is 442368, while the sum is 43.

The square root of 242688634 is about 15578.4669977505. The cubic root of 242688634 is about 623.7585032100.

The spelling of 242688634 in words is "two hundred forty-two million, six hundred eighty-eight thousand, six hundred thirty-four".