432444340421 has 4 divisors (see below), whose sum is σ = 432484255692. Its totient is φ = 432404425152.

The previous prime is 432444340387. The next prime is 432444340429. The reversal of 432444340421 is 124043444234.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 295081449796 + 137362890625 = 543214^2 + 370625^2 .

It is a cyclic number.

It is not a de Polignac number, because 432444340421 - 2¹⁸ = 432444078277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (432444340429) 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, 19941380 + ... + 19963053.

It is an arithmetic number, because the mean of its divisors is an integer number (108121063923).

Almost surely, 2^432444340421 is an apocalyptic number.

It is an amenable number.

432444340421 is a deficient number, since it is larger than the sum of its proper divisors (39915271).

432444340421 is a wasteful number, since it uses less digits than its factorization.

432444340421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39915270.

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 432444340421 its reverse (124043444234), we get a palindrome (556487784655).

The spelling of 432444340421 in words is "four hundred thirty-two billion, four hundred forty-four million, three hundred forty thousand, four hundred twenty-one".