242143004 has 24 divisors (see below), whose sum is σ = 428263920. Its totient is φ = 119788416.

The previous prime is 242143003. The next prime is 242143037. The reversal of 242143004 is 400341242.

It is a super-2 number, since 2×242143004² = 117266468772288032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242143003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220184 + ... + 221280.

It is an arithmetic number, because the mean of its divisors is an integer number (17844330).

Almost surely, 2^242143004 is an apocalyptic number.

It is an amenable number.

242143004 is a deficient number, since it is larger than the sum of its proper divisors (186120916).

242143004 is a wasteful number, since it uses less digits than its factorization.

242143004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637 (or 1635 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 242143004 is about 15560.9448299260. The cubic root of 242143004 is about 623.2906929058.

Adding to 242143004 its reverse (400341242), we get a palindrome (642484246).

The spelling of 242143004 in words is "two hundred forty-two million, one hundred forty-three thousand, four".