1302220 has 12 divisors (see below), whose sum is σ = 2734704. Its totient is φ = 520880.

The previous prime is 1302209. The next prime is 1302221. The reversal of 1302220 is 222031.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1302197 and 1302206.

It is not an unprimeable number, because it can be changed into a prime (1302221) 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, 32536 + ... + 32575.

It is an arithmetic number, because the mean of its divisors is an integer number (227892).

2^1302220 is an apocalyptic number.

1302220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1302220 is an abundant number, since it is smaller than the sum of its proper divisors (1432484).

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

1302220 is a wasteful number, since it uses less digits than its factorization.

1302220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65120 (or 65118 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 1302220 is about 1141.1485442308. The cubic root of 1302220 is about 109.2013784169.

Adding to 1302220 its reverse (222031), we get a palindrome (1524251).

The spelling of 1302220 in words is "one million, three hundred two thousand, two hundred twenty".