1226508288 has 96 divisors (see below), whose sum is σ = 3308104800. Its totient is φ = 404062208.

The previous prime is 1226508277. The next prime is 1226508289. The reversal of 1226508288 is 8828056221.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (1226508289) 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, 545695 + ... + 547937.

It is an arithmetic number, because the mean of its divisors is an integer number (34459425).

Almost surely, 2^1226508288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1226508288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1654052400).

1226508288 is an abundant number, since it is smaller than the sum of its proper divisors (2081596512).

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

1226508288 is an equidigital number, since it uses as much as digits as its factorization.

1226508288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357 (or 2337 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 42.

The square root of 1226508288 is about 35021.5403430517. The cubic root of 1226508288 is about 1070.4264431164.

The spelling of 1226508288 in words is "one billion, two hundred twenty-six million, five hundred eight thousand, two hundred eighty-eight".