1302302220 has 48 divisors (see below), whose sum is σ = 3715256160. Its totient is φ = 340727296.

The previous prime is 1302302203. The next prime is 1302302227. The reversal of 1302302220 is 222032031.

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 1302302220.

It is not an unprimeable number, because it can be changed into a prime (1302302227) 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, 201585 + ... + 207944.

It is an arithmetic number, because the mean of its divisors is an integer number (77401170).

Almost surely, 2^1302302220 is an apocalyptic number.

1302302220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1302302220 is an abundant number, since it is smaller than the sum of its proper divisors (2412953940).

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

1302302220 is a wasteful number, since it uses less digits than its factorization.

1302302220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409594 (or 409592 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1302302220 is about 36087.4246795196. The cubic root of 1302302220 is about 1092.0367663291.

Adding to 1302302220 its reverse (222032031), we get a palindrome (1524334251).

The spelling of 1302302220 in words is "one billion, three hundred two million, three hundred two thousand, two hundred twenty".