320042433 has 16 divisors (see below), whose sum is σ = 437673600. Its totient is φ = 207899520.

The previous prime is 320042431. The next prime is 320042449. The reversal of 320042433 is 334240023.

It is not a de Polignac number, because 320042433 - 2¹ = 320042431 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320042431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190923 + ... + 192591.

It is an arithmetic number, because the mean of its divisors is an integer number (27354600).

Almost surely, 2^320042433 is an apocalyptic number.

It is an amenable number.

320042433 is a deficient number, since it is larger than the sum of its proper divisors (117631167).

320042433 is a wasteful number, since it uses less digits than its factorization.

320042433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3272.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 320042433 is about 17889.7298190889. The cubic root of 320042433 is about 684.0206104217.

Adding to 320042433 its reverse (334240023), we get a palindrome (654282456).

The spelling of 320042433 in words is "three hundred twenty million, forty-two thousand, four hundred thirty-three".