420321433 has 8 divisors (see below), whose sum is σ = 481050560. Its totient is φ = 359763120.

The previous prime is 420321397. The next prime is 420321437. The reversal of 420321433 is 334123024.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420321433 - 2⁹ = 420320921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420321437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37383 + ... + 47308.

It is an arithmetic number, because the mean of its divisors is an integer number (60131320).

Almost surely, 2^420321433 is an apocalyptic number.

It is an amenable number.

420321433 is a deficient number, since it is larger than the sum of its proper divisors (60729127).

420321433 is an equidigital number, since it uses as much as digits as its factorization.

420321433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85407.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 420321433 is about 20501.7421942624. The cubic root of 420321433 is about 749.0782353009.

Adding to 420321433 its reverse (334123024), we get a palindrome (754444457).

The spelling of 420321433 in words is "four hundred twenty million, three hundred twenty-one thousand, four hundred thirty-three".