320243433 has 32 divisors (see below), whose sum is σ = 469929600. Its totient is φ = 193084416.

The previous prime is 320243431. The next prime is 320243453. The reversal of 320243433 is 334342023.

It is not a de Polignac number, because 320243433 - 2¹ = 320243431 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320243431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 432978 + ... + 433716.

It is an arithmetic number, because the mean of its divisors is an integer number (14685300).

Almost surely, 2^320243433 is an apocalyptic number.

It is an amenable number.

320243433 is a deficient number, since it is larger than the sum of its proper divisors (149686167).

320243433 is a wasteful number, since it uses less digits than its factorization.

320243433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081.

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

The square root of 320243433 is about 17895.3466856611. The cubic root of 320243433 is about 684.1637782809.

Adding to 320243433 its reverse (334342023), we get a palindrome (654585456).

The spelling of 320243433 in words is "three hundred twenty million, two hundred forty-three thousand, four hundred thirty-three".