42240044254 has 4 divisors (see below), whose sum is σ = 63360066384. Its totient is φ = 21120022126.

The previous prime is 42240044243. The next prime is 42240044311. The reversal of 42240044254 is 45244004224.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10560011062 + ... + 10560011065.

It is an arithmetic number, because the mean of its divisors is an integer number (15840016596).

Almost surely, 2^42240044254 is an apocalyptic number.

42240044254 is a deficient number, since it is larger than the sum of its proper divisors (21120022130).

42240044254 is a wasteful number, since it uses less digits than its factorization.

42240044254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21120022129.

The product of its (nonzero) digits is 40960, while the sum is 31.

Adding to 42240044254 its reverse (45244004224), we get a palindrome (87484048478).

The spelling of 42240044254 in words is "forty-two billion, two hundred forty million, forty-four thousand, two hundred fifty-four".