42004321443 has 32 divisors (see below), whose sum is σ = 71129541120. Its totient is φ = 23998718880.

The previous prime is 42004321439. The next prime is 42004321507. The reversal of 42004321443 is 34412340024.

It is a happy number.

42004321443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42004321443 - 2² = 42004321439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (42004321243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1585996 + ... + 1612262.

It is an arithmetic number, because the mean of its divisors is an integer number (2222798160).

Almost surely, 2^42004321443 is an apocalyptic number.

42004321443 is a deficient number, since it is larger than the sum of its proper divisors (29125219677).

42004321443 is a wasteful number, since it uses less digits than its factorization.

42004321443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34744 (or 34738 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 42004321443 its reverse (34412340024), we get a palindrome (76416661467).

The spelling of 42004321443 in words is "forty-two billion, four million, three hundred twenty-one thousand, four hundred forty-three".