4453220 has 24 divisors (see below), whose sum is σ = 9844800. Its totient is φ = 1687392.

The previous prime is 4453213. The next prime is 4453223. The reversal of 4453220 is 223544.

4453220 = 130² + 131² + ... + 249².

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 = 4453192 and 4453201.

It is not an unprimeable number, because it can be changed into a prime (4453223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5480 + ... + 6239.

It is an arithmetic number, because the mean of its divisors is an integer number (410200).

Almost surely, 2^4453220 is an apocalyptic number.

It is an amenable number.

4453220 is an abundant number, since it is smaller than the sum of its proper divisors (5391580).

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

4453220 is a wasteful number, since it uses less digits than its factorization.

4453220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11747 (or 11745 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 4453220 is about 2110.2653861541. The cubic root of 4453220 is about 164.5222790506.

Adding to 4453220 its reverse (223544), we get a palindrome (4676764).

The spelling of 4453220 in words is "four million, four hundred fifty-three thousand, two hundred twenty".