320432441 has 4 divisors (see below), whose sum is σ = 366208512. Its totient is φ = 274656372.

The previous prime is 320432429. The next prime is 320432467. The reversal of 320432441 is 144234023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 320432441 - 2⁶ = 320432377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320432401) 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, 22888025 + ... + 22888038.

It is an arithmetic number, because the mean of its divisors is an integer number (91552128).

Almost surely, 2^320432441 is an apocalyptic number.

It is an amenable number.

320432441 is a deficient number, since it is larger than the sum of its proper divisors (45776071).

320432441 is an equidigital number, since it uses as much as digits as its factorization.

320432441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45776070.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 320432441 is about 17900.6268326000. The cubic root of 320432441 is about 684.2983498623.

Adding to 320432441 its reverse (144234023), we get a palindrome (464666464).

The spelling of 320432441 in words is "three hundred twenty million, four hundred thirty-two thousand, four hundred forty-one".