1222447626 has 40 divisors (see below), whose sum is σ = 2741182884. Its totient is φ = 407185920.

The previous prime is 1222447621. The next prime is 1222447651. The reversal of 1222447626 is 6267442221.

1222447626 is a `hidden beast` number, since 1 + 2 + 2 + 24 + 4 + 7 + 626 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1193771601 + 28676025 = 34551^2 + 5355^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1222447621) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 442666 + ... + 445418.

Almost surely, 2^1222447626 is an apocalyptic number.

1222447626 is an abundant number, since it is smaller than the sum of its proper divisors (1518735258).

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

1222447626 is a wasteful number, since it uses less digits than its factorization.

1222447626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5508 (or 5499 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 1222447626 is about 34963.5185014323. The cubic root of 1222447626 is about 1069.2438323545.

Adding to 1222447626 its reverse (6267442221), we get a palindrome (7489889847).

The spelling of 1222447626 in words is "one billion, two hundred twenty-two million, four hundred forty-seven thousand, six hundred twenty-six".