4507220 has 24 divisors (see below), whose sum is σ = 9525600. Its totient is φ = 1791392.

The previous prime is 4507211. The next prime is 4507247. The reversal of 4507220 is 227054.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4507192 and 4507201.

It is a congruent number.

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, 2951 + ... + 4209.

It is an arithmetic number, because the mean of its divisors is an integer number (396900).

Almost surely, 2^4507220 is an apocalyptic number.

It is an amenable number.

4507220 is an abundant number, since it is smaller than the sum of its proper divisors (5018380).

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

4507220 is a wasteful number, since it uses less digits than its factorization.

4507220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1447 (or 1445 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 4507220 is about 2123.0214318278. The cubic root of 4507220 is about 165.1846112453.

The spelling of 4507220 in words is "four million, five hundred seven thousand, two hundred twenty".