320478026 has 8 divisors (see below), whose sum is σ = 524418624. Its totient is φ = 145671820.

The previous prime is 320478019. The next prime is 320478047. The reversal of 320478026 is 620874023.

320478026 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 320477983 and 320478001.

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 in 3 ways as a sum of consecutive naturals, for example, 7283570 + ... + 7283613.

It is an arithmetic number, because the mean of its divisors is an integer number (65552328).

Almost surely, 2^320478026 is an apocalyptic number.

320478026 is a deficient number, since it is larger than the sum of its proper divisors (203940598).

320478026 is a wasteful number, since it uses less digits than its factorization.

320478026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14567196.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 320478026 is about 17901.9000667527. The cubic root of 320478026 is about 684.3307979514.

The spelling of 320478026 in words is "three hundred twenty million, four hundred seventy-eight thousand, twenty-six".