320353420 has 24 divisors (see below), whose sum is σ = 682220448. Its totient is φ = 126336000.

The previous prime is 320353403. The next prime is 320353447. The reversal of 320353420 is 24353023.

It is a junction number, because it is equal to n+sod(n) for n = 320353391 and 320353400.

It is an unprimeable number.

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, 111381 + ... + 114220.

It is an arithmetic number, because the mean of its divisors is an integer number (28425852).

Almost surely, 2^320353420 is an apocalyptic number.

It is an amenable number.

320353420 is an abundant number, since it is smaller than the sum of its proper divisors (361867028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320353420 is a wasteful number, since it uses less digits than its factorization.

320353420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225681 (or 225679 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 320353420 is about 17898.4194832952. The cubic root of 320353420 is about 684.2420942333.

The spelling of 320353420 in words is "three hundred twenty million, three hundred fifty-three thousand, four hundred twenty".