42144420433 has 8 divisors (see below), whose sum is σ = 43858745280. Its totient is φ = 40447500240.

The previous prime is 42144420427. The next prime is 42144420499. The reversal of 42144420433 is 33402444124.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42144420433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42144420395 and 42144420404.

It is not an unprimeable number, because it can be changed into a prime (42144420403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4346223 + ... + 4355908.

It is an arithmetic number, because the mean of its divisors is an integer number (5482343160).

Almost surely, 2^42144420433 is an apocalyptic number.

It is an amenable number.

42144420433 is a deficient number, since it is larger than the sum of its proper divisors (1714324847).

42144420433 is a wasteful number, since it uses less digits than its factorization.

42144420433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8702327.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 42144420433 its reverse (33402444124), we get a palindrome (75546864557).

The spelling of 42144420433 in words is "forty-two billion, one hundred forty-four million, four hundred twenty thousand, four hundred thirty-three".