902220 has 48 divisors (see below), whose sum is σ = 2757888. Its totient is φ = 218560.

The previous prime is 902201. The next prime is 902227. The reversal of 902220 is 22209.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 902220.

It is not an unprimeable number, because it can be changed into a prime (902227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24 + ... + 1343.

It is an arithmetic number, because the mean of its divisors is an integer number (57456).

2⁹⁰²²²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 902220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1378944).

902220 is an abundant number, since it is smaller than the sum of its proper divisors (1855668).

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

902220 is a wasteful number, since it uses less digits than its factorization.

902220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390 (or 1388 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 902220 is about 949.8526201469. The cubic root of 902220 is about 96.6282579607.

Adding to 902220 its reverse (22209), we get a palindrome (924429).

The spelling of 902220 in words is "nine hundred two thousand, two hundred twenty".