242240042 has 16 divisors (see below), whose sum is σ = 396748800. Its totient is φ = 110010240.

The previous prime is 242240039. The next prime is 242240059. The reversal of 242240042 is 240042242.

It is a junction number, because it is equal to n+sod(n) for n = 242239996 and 242240023.

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, 23834 + ... + 32442.

It is an arithmetic number, because the mean of its divisors is an integer number (24796800).

Almost surely, 2^242240042 is an apocalyptic number.

242240042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

242240042 is a deficient number, since it is larger than the sum of its proper divisors (154508758).

242240042 is a wasteful number, since it uses less digits than its factorization.

242240042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9901.

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 242240042 is about 15564.0625159372. The cubic root of 242240042 is about 623.3739423405.

Adding to 242240042 its reverse (240042242), we get a palindrome (482282284).

The spelling of 242240042 in words is "two hundred forty-two million, two hundred forty thousand, forty-two".