42332404433421 has 4 divisors (see below), whose sum is σ = 56443205911232. Its totient is φ = 28221602955612.

The previous prime is 42332404433383. The next prime is 42332404433441. The reversal of 42332404433421 is 12433440423324.

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 42332404433421 - 2⁶ = 42332404433357 is a prime.

It is a super-2 number, since 2×42332404433421² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42332404433421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42332404433441) 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, 7055400738901 + ... + 7055400738906.

It is an arithmetic number, because the mean of its divisors is an integer number (14110801477808).

Almost surely, 2^{42332404433421} is an apocalyptic number.

It is an amenable number.

42332404433421 is a deficient number, since it is larger than the sum of its proper divisors (14110801477811).

42332404433421 is a wasteful number, since it uses less digits than its factorization.

42332404433421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14110801477810.

The product of its (nonzero) digits is 663552, while the sum is 39.

Adding to 42332404433421 its reverse (12433440423324), we get a palindrome (54765844856745).

The spelling of 42332404433421 in words is "forty-two trillion, three hundred thirty-two billion, four hundred four million, four hundred thirty-three thousand, four hundred twenty-one".