1002280 has 16 divisors (see below), whose sum is σ = 2255220. Its totient is φ = 400896.

The previous prime is 1002263. The next prime is 1002289. The reversal of 1002280 is 822001.

1002280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 956484 + 45796 = 978^2 + 214^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1002280.

It is not an unprimeable number, because it can be changed into a prime (1002289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12489 + ... + 12568.

2^1002280 is an apocalyptic number.

1002280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002280 is an abundant number, since it is smaller than the sum of its proper divisors (1252940).

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

1002280 is a wasteful number, since it uses less digits than its factorization.

1002280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25068 (or 25064 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1002280 is about 1001.1393509397. The cubic root of 1002280 is about 100.0759423131.

Adding to 1002280 its reverse (822001), we get a palindrome (1824281).

The spelling of 1002280 in words is "one million, two thousand, two hundred eighty".