432844421 has 4 divisors (see below), whose sum is σ = 443401644. Its totient is φ = 422287200.

The previous prime is 432844411. The next prime is 432844441. The reversal of 432844421 is 124448234.

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 192904321 + 239940100 = 13889^2 + 15490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-432844421 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 (432844411) 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, 5278550 + ... + 5278631.

It is an arithmetic number, because the mean of its divisors is an integer number (110850411).

Almost surely, 2^432844421 is an apocalyptic number.

432844421 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

432844421 is a deficient number, since it is larger than the sum of its proper divisors (10557223).

432844421 is a wasteful number, since it uses less digits than its factorization.

432844421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10557222.

The product of its digits is 24576, while the sum is 32.

The square root of 432844421 is about 20804.9133860249. The cubic root of 432844421 is about 756.4448574129. Note that the first 3 decimals are identical.

The spelling of 432844421 in words is "four hundred thirty-two million, eight hundred forty-four thousand, four hundred twenty-one".