945220 has 24 divisors (see below), whose sum is σ = 2003904. Its totient is φ = 374496.

The previous prime is 945211. The next prime is 945227. The reversal of 945220 is 22549.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 945191 and 945200.

It is not an unprimeable number, because it can be changed into a prime (945227) 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, 3199 + ... + 3481.

It is an arithmetic number, because the mean of its divisors is an integer number (83496).

2⁹⁴⁵²²⁰ is an apocalyptic number.

It is an amenable number.

945220 is an abundant number, since it is smaller than the sum of its proper divisors (1058684).

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

945220 is a wasteful number, since it uses less digits than its factorization.

945220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 945220 is about 972.2242539661. The cubic root of 945220 is about 98.1396038956.

Adding to 945220 its reverse (22549), we get a palindrome (967769).

The spelling of 945220 in words is "nine hundred forty-five thousand, two hundred twenty".