1222403408 has 20 divisors (see below), whose sum is σ = 2444807808. Its totient is φ = 591485280.

The previous prime is 1222403407. The next prime is 1222403443. The reversal of 1222403408 is 8043042221.

1222403408 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222403407) 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 3 ways as a sum of consecutive naturals, for example, 1231766 + ... + 1232757.

Almost surely, 2^1222403408 is an apocalyptic number.

It is an amenable number.

1222403408 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1222403408 is a wasteful number, since it uses less digits than its factorization.

1222403408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464562 (or 2464556 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 1222403408 is about 34962.8861508886. The cubic root of 1222403408 is about 1069.2309400793.

Adding to 1222403408 its reverse (8043042221), we get a palindrome (9265445629).

The spelling of 1222403408 in words is "one billion, two hundred twenty-two million, four hundred three thousand, four hundred eight".