42321400442 has 8 divisors (see below), whose sum is σ = 63578433600. Its totient is φ = 21128589244.

The previous prime is 42321400427. The next prime is 42321400481. The reversal of 42321400442 is 24400412324.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42321400442² (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 in 3 ways as a sum of consecutive naturals, for example, 16053842 + ... + 16056477.

It is an arithmetic number, because the mean of its divisors is an integer number (7947304200).

Almost surely, 2^42321400442 is an apocalyptic number.

42321400442 is a deficient number, since it is larger than the sum of its proper divisors (21257033158).

42321400442 is a wasteful number, since it uses less digits than its factorization.

42321400442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32110980.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 42321400442 its reverse (24400412324), we get a palindrome (66721812766).

The spelling of 42321400442 in words is "forty-two billion, three hundred twenty-one million, four hundred thousand, four hundred forty-two".