320642435 has 8 divisors (see below), whose sum is σ = 389641920. Its totient is φ = 253266624.

The previous prime is 320642429. The next prime is 320642447. The reversal of 320642435 is 534246023.

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 320642435 - 2⁴ = 320642419 is a prime.

It is a super-2 number, since 2×320642435² = 205623142245458450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320642398 and 320642407.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 405482 + ... + 406271.

It is an arithmetic number, because the mean of its divisors is an integer number (48705240).

Almost surely, 2^320642435 is an apocalyptic number.

320642435 is a deficient number, since it is larger than the sum of its proper divisors (68999485).

320642435 is an equidigital number, since it uses as much as digits as its factorization.

320642435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811837.

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 320642435 is about 17906.4914207111. The cubic root of 320642435 is about 684.4478011974.

Adding to 320642435 its reverse (534246023), we get a palindrome (854888458).

The spelling of 320642435 in words is "three hundred twenty million, six hundred forty-two thousand, four hundred thirty-five".