1222843340 has 24 divisors (see below), whose sum is σ = 2637377232. Its totient is φ = 475917120.

The previous prime is 1222843289. The next prime is 1222843343. The reversal of 1222843340 is 433482221.

It is not an unprimeable number, because it can be changed into a prime (1222843343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 825506 + ... + 826985.

It is an arithmetic number, because the mean of its divisors is an integer number (109890718).

Almost surely, 2^1222843340 is an apocalyptic number.

1222843340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222843340 is an abundant number, since it is smaller than the sum of its proper divisors (1414533892).

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

1222843340 is a wasteful number, since it uses less digits than its factorization.

1222843340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652537 (or 1652535 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 1222843340 is about 34969.1769991803. The cubic root of 1222843340 is about 1069.3591935632.

The spelling of 1222843340 in words is "one billion, two hundred twenty-two million, eight hundred forty-three thousand, three hundred forty".