1222839473 has 8 divisors (see below), whose sum is σ = 1253304360. Its totient is φ = 1192405120.

The previous prime is 1222839469. The next prime is 1222839493. The reversal of 1222839473 is 3749382221.

It can be written as a sum of positive squares in 4 ways, for example, as 119071744 + 1103767729 = 10912^2 + 33223^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222839473 - 2² = 1222839469 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222839473.

It is not an unprimeable number, because it can be changed into a prime (1222839403) 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 7 ways as a sum of consecutive naturals, for example, 88211 + ... + 101127.

It is an arithmetic number, because the mean of its divisors is an integer number (156663045).

Almost surely, 2^1222839473 is an apocalyptic number.

It is an amenable number.

1222839473 is a deficient number, since it is larger than the sum of its proper divisors (30464887).

1222839473 is a wasteful number, since it uses less digits than its factorization.

1222839473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15267.

The product of its digits is 145152, while the sum is 41.

The square root of 1222839473 is about 34969.1217075865. The cubic root of 1222839473 is about 1069.3580663498.

The spelling of 1222839473 in words is "one billion, two hundred twenty-two million, eight hundred thirty-nine thousand, four hundred seventy-three".