320442607 has 4 divisors (see below), whose sum is σ = 329103256. Its totient is φ = 311781960.

The previous prime is 320442587. The next prime is 320442643. The reversal of 320442607 is 706244023.

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

It is a cyclic number.

It is not a de Polignac number, because 320442607 - 2²³ = 312053999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320442697) 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, 4330269 + ... + 4330342.

It is an arithmetic number, because the mean of its divisors is an integer number (82275814).

Almost surely, 2^320442607 is an apocalyptic number.

320442607 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

320442607 is a deficient number, since it is larger than the sum of its proper divisors (8660649).

320442607 is an equidigital number, since it uses as much as digits as its factorization.

320442607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8660648.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 320442607 is about 17900.9107868846. The cubic root of 320442607 is about 684.3055864407.

The spelling of 320442607 in words is "three hundred twenty million, four hundred forty-two thousand, six hundred seven".