42240043424 has 12 divisors (see below), whose sum is σ = 83160085554. Its totient is φ = 21120021696.

The previous prime is 42240043411. The next prime is 42240043441. The reversal of 42240043424 is 42434004224.

It can be written as a sum of positive squares in only one way, i.e., 42197376400 + 42667024 = 205420^2 + 6532^2 .

It is a super-2 number, since 2×42240043424² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660000647 + ... + 660000710.

Almost surely, 2^42240043424 is an apocalyptic number.

It is an amenable number.

42240043424 is a deficient number, since it is larger than the sum of its proper divisors (40920042130).

42240043424 is a wasteful number, since it uses less digits than its factorization.

42240043424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320001367 (or 1320001359 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 29.

Adding to 42240043424 its reverse (42434004224), we get a palindrome (84674047648).

The spelling of 42240043424 in words is "forty-two billion, two hundred forty million, forty-three thousand, four hundred twenty-four".