320406026 has 8 divisors (see below), whose sum is σ = 480963204. Its totient is φ = 160084960.

The previous prime is 320406001. The next prime is 320406059. The reversal of 320406026 is 620604023.

It can be written as a sum of positive squares in 2 ways, for example, as 195972001 + 124434025 = 13999^2 + 11155^2 .

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

It is a super-2 number, since 2×320406026² = 205320042994225352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320405992 and 320406010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55595 + ... + 61086.

Almost surely, 2^320406026 is an apocalyptic number.

320406026 is a deficient number, since it is larger than the sum of its proper divisors (160557178).

320406026 is a wasteful number, since it uses less digits than its factorization.

320406026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118056.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 320406026 is about 17899.8889940692. Note that the first 3 decimals coincide. The cubic root of 320406026 is about 684.2795458594.

The spelling of 320406026 in words is "three hundred twenty million, four hundred six thousand, twenty-six".