907220 has 12 divisors (see below), whose sum is σ = 1905204. Its totient is φ = 362880.

The previous prime is 907217. The next prime is 907223. The reversal of 907220 is 22709.

It is an interprime number because it is at equal distance from previous prime (907217) and next prime (907223).

It can be written as a sum of positive squares in 2 ways, for example, as 111556 + 795664 = 334^2 + 892^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 45361 = 907220 / (9 + 0 + 7 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 907192 and 907201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (907223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22661 + ... + 22700.

It is an arithmetic number, because the mean of its divisors is an integer number (158767).

2⁹⁰⁷²²⁰ is an apocalyptic number.

It is an amenable number.

907220 is an abundant number, since it is smaller than the sum of its proper divisors (997984).

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

907220 is a wasteful number, since it uses less digits than its factorization.

907220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45370 (or 45368 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 907220 is about 952.4809709385. The cubic root of 907220 is about 96.8064301445.

Adding to 907220 its reverse (22709), we get a palindrome (929929).

The spelling of 907220 in words is "nine hundred seven thousand, two hundred twenty".