1226888208 has 400 divisors, whose sum is σ = 4456548096. Its totient is φ = 317260800.

The previous prime is 1226888207. The next prime is 1226888213. The reversal of 1226888208 is 8028886221.

It is not an unprimeable number, because it can be changed into a prime (1226888207) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 11911485 + ... + 11911587.

Almost surely, 2^1226888208 is an apocalyptic number.

1226888208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1226888208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2228274048).

1226888208 is an abundant number, since it is smaller than the sum of its proper divisors (3229659888).

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

1226888208 is a wasteful number, since it uses less digits than its factorization.

1226888208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 45.

The square root of 1226888208 is about 35026.9640134568. The cubic root of 1226888208 is about 1070.5369558718.

The spelling of 1226888208 in words is "one billion, two hundred twenty-six million, eight hundred eighty-eight thousand, two hundred eight".