42404403220433 has 4 divisors (see below), whose sum is σ = 42941167818240. Its totient is φ = 41867638622628.

The previous prime is 42404403220427. The next prime is 42404403220471. The reversal of 42404403220433 is 33402230440424.

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 a cyclic number.

It is not a de Polignac number, because 42404403220433 - 2⁶ = 42404403220369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42404403220393 and 42404403220402.

It is not an unprimeable number, because it can be changed into a prime (42404403220733) 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, 268382298785 + ... + 268382298942.

It is an arithmetic number, because the mean of its divisors is an integer number (10735291954560).

Almost surely, 2^{42404403220433} is an apocalyptic number.

It is an amenable number.

42404403220433 is a deficient number, since it is larger than the sum of its proper divisors (536764597807).

42404403220433 is an equidigital number, since it uses as much as digits as its factorization.

42404403220433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536764597806.

The product of its (nonzero) digits is 221184, while the sum is 35.

Adding to 42404403220433 its reverse (33402230440424), we get a palindrome (75806633660857).

The spelling of 42404403220433 in words is "forty-two trillion, four hundred four billion, four hundred three million, two hundred twenty thousand, four hundred thirty-three".