4365220 has 24 divisors (see below), whose sum is σ = 9262008. Its totient is φ = 1728000.

The previous prime is 4365211. The next prime is 4365247. The reversal of 4365220 is 225634.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1721344 + 2643876 = 1312^2 + 1626^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4365191 and 4365200.

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, 940 + ... + 3100.

It is an arithmetic number, because the mean of its divisors is an integer number (385917).

Almost surely, 2^4365220 is an apocalyptic number.

It is an amenable number.

4365220 is an abundant number, since it is smaller than the sum of its proper divisors (4896788).

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

4365220 is a wasteful number, since it uses less digits than its factorization.

4365220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271 (or 2269 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 4365220 is about 2089.3108911792. The cubic root of 4365220 is about 163.4313540007.

The spelling of 4365220 in words is "four million, three hundred sixty-five thousand, two hundred twenty".