320413625 has 32 divisors (see below), whose sum is σ = 481079040. Its totient is φ = 208137600.

The previous prime is 320413609. The next prime is 320413633. The reversal of 320413625 is 526314023.

It is not a de Polignac number, because 320413625 - 2⁴ = 320413609 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 320413594 and 320413603.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6989 + ... + 26261.

It is an arithmetic number, because the mean of its divisors is an integer number (15033720).

Almost surely, 2^320413625 is an apocalyptic number.

320413625 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

320413625 is a deficient number, since it is larger than the sum of its proper divisors (160665415).

320413625 is a wasteful number, since it uses less digits than its factorization.

320413625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19314 (or 19304 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 320413625 is about 17900.1012566968. The cubic root of 320413625 is about 684.2849554530.

Adding to 320413625 its reverse (526314023), we get a palindrome (846727648).

The spelling of 320413625 in words is "three hundred twenty million, four hundred thirteen thousand, six hundred twenty-five".