1022260 has 24 divisors (see below), whose sum is σ = 2177280. Its totient is φ = 403104.

The previous prime is 1022251. The next prime is 1022291. The reversal of 1022260 is 622201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1022260.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1257 + ... + 1903.

It is an arithmetic number, because the mean of its divisors is an integer number (90720).

2^1022260 is an apocalyptic number.

1022260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022260 is an abundant number, since it is smaller than the sum of its proper divisors (1155020).

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

1022260 is a wasteful number, since it uses less digits than its factorization.

1022260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735 (or 733 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1022260 is about 1011.0687414810. The cubic root of 1022260 is about 100.7365614522.

Adding to 1022260 its reverse (622201), we get a palindrome (1644461).

The spelling of 1022260 in words is "one million, twenty-two thousand, two hundred sixty".