320441642 has 4 divisors (see below), whose sum is σ = 480662466. Its totient is φ = 160220820.

The previous prime is 320441621. The next prime is 320441663. The reversal of 320441642 is 246144023.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (320441621) and next prime (320441663).

It can be written as a sum of positive squares in only one way, i.e., 181413961 + 139027681 = 13469^2 + 11791^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80110409 + ... + 80110412.

Almost surely, 2^320441642 is an apocalyptic number.

320441642 is a deficient number, since it is larger than the sum of its proper divisors (160220824).

320441642 is a wasteful number, since it uses less digits than its factorization.

320441642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160220823.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 320441642 is about 17900.8838329285. The cubic root of 320441642 is about 684.3048995204.

Adding to 320441642 its reverse (246144023), we get a palindrome (566585665).

The spelling of 320441642 in words is "three hundred twenty million, four hundred forty-one thousand, six hundred forty-two".