242555738 has 16 divisors (see below), whose sum is σ = 372366720. Its totient is φ = 118465200.

The previous prime is 242555717. The next prime is 242555741. The reversal of 242555738 is 837555242.

It is a junction number, because it is equal to n+sod(n) for n = 242555695 and 242555704.

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, 7643 + ... + 23313.

It is an arithmetic number, because the mean of its divisors is an integer number (23272920).

Almost surely, 2^242555738 is an apocalyptic number.

242555738 is a deficient number, since it is larger than the sum of its proper divisors (129810982).

242555738 is a wasteful number, since it uses less digits than its factorization.

242555738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15853.

The product of its digits is 336000, while the sum is 41.

The square root of 242555738 is about 15574.2010388976. The cubic root of 242555738 is about 623.6446259559.

The spelling of 242555738 in words is "two hundred forty-two million, five hundred fifty-five thousand, seven hundred thirty-eight".