4065320 has 32 divisors (see below), whose sum is σ = 10454400. Its totient is φ = 1393728.

The previous prime is 4065317. The next prime is 4065331. The reversal of 4065320 is 235604.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4065292 and 4065301.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6980 + ... + 7539.

It is an arithmetic number, because the mean of its divisors is an integer number (326700).

Almost surely, 2^4065320 is an apocalyptic number.

4065320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4065320 is an abundant number, since it is smaller than the sum of its proper divisors (6389080).

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

4065320 is a wasteful number, since it uses less digits than its factorization.

4065320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14537 (or 14533 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 4065320 is about 2016.2638716200. The cubic root of 4065320 is about 159.5995192646.

The spelling of 4065320 in words is "four million, sixty-five thousand, three hundred twenty".