320423433 has 16 divisors (see below), whose sum is σ = 466477056. Its totient is φ = 194026640.

The previous prime is 320423431. The next prime is 320423443. The reversal of 320423433 is 334324023.

It is a cyclic number.

It is not a de Polignac number, because 320423433 - 2¹ = 320423431 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (320423431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41560 + ... + 48662.

It is an arithmetic number, because the mean of its divisors is an integer number (29154816).

Almost surely, 2^320423433 is an apocalyptic number.

320423433 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

320423433 is a deficient number, since it is larger than the sum of its proper divisors (146053623).

320423433 is a wasteful number, since it uses less digits than its factorization.

320423433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8484.

The product of its (nonzero) digits is 5184, while the sum is 24.

The square root of 320423433 is about 17900.3752195310. The cubic root of 320423433 is about 684.2919374682.

Adding to 320423433 its reverse (334324023), we get a palindrome (654747456).

The spelling of 320423433 in words is "three hundred twenty million, four hundred twenty-three thousand, four hundred thirty-three".