320078631 has 8 divisors (see below), whose sum is σ = 433141504. Its totient is φ = 210200760.

The previous prime is 320078593. The next prime is 320078639. The reversal of 320078631 is 136870023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 320078631 - 2⁹ = 320078119 is a prime.

It is a super-2 number, since 2×320078631² = 204900660045668322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320078639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 796015 + ... + 796416.

It is an arithmetic number, because the mean of its divisors is an integer number (54142688).

Almost surely, 2^320078631 is an apocalyptic number.

320078631 is a deficient number, since it is larger than the sum of its proper divisors (113062873).

320078631 is a wasteful number, since it uses less digits than its factorization.

320078631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592501.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 320078631 is about 17890.7414882671. The cubic root of 320078631 is about 684.0463978820.

The spelling of 320078631 in words is "three hundred twenty million, seventy-eight thousand, six hundred thirty-one".