42104440433 has 4 divisors (see below), whose sum is σ = 45932116848. Its totient is φ = 38276764020.

The previous prime is 42104440403. The next prime is 42104440451. The reversal of 42104440433 is 33404440124.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 42104440433 - 2¹⁸ = 42104178289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42104440396 and 42104440405.

It is not an unprimeable number, because it can be changed into a prime (42104440403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1913838191 + ... + 1913838212.

It is an arithmetic number, because the mean of its divisors is an integer number (11483029212).

Almost surely, 2^42104440433 is an apocalyptic number.

It is an amenable number.

42104440433 is a deficient number, since it is larger than the sum of its proper divisors (3827676415).

42104440433 is a wasteful number, since it uses less digits than its factorization.

42104440433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3827676414.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 42104440433 its reverse (33404440124), we get a palindrome (75508880557).

The spelling of 42104440433 in words is "forty-two billion, one hundred four million, four hundred forty thousand, four hundred thirty-three".