320426225 has 24 divisors (see below), whose sum is σ = 473838720. Its totient is φ = 210165120.

The previous prime is 320426221. The next prime is 320426233. The reversal of 320426225 is 522624023.

It is not a de Polignac number, because 320426225 - 2² = 320426221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320426194 and 320426203.

It is not an unprimeable number, because it can be changed into a prime (320426221) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 35780 + ... + 43829.

It is an arithmetic number, because the mean of its divisors is an integer number (19743280).

Almost surely, 2^320426225 is an apocalyptic number.

320426225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

320426225 is a deficient number, since it is larger than the sum of its proper divisors (153412495).

320426225 is a wasteful number, since it uses less digits than its factorization.

320426225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79649 (or 79644 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 320426225 is about 17900.4532065532. The cubic root of 320426225 is about 684.2939249815.

The spelling of 320426225 in words is "three hundred twenty million, four hundred twenty-six thousand, two hundred twenty-five".