1228087296 has 84 divisors (see below), whose sum is σ = 3547804182. Its totient is φ = 409337856.

The previous prime is 1228087283. The next prime is 1228087321. The reversal of 1228087296 is 6927808221.

1228087296 is a `hidden beast` number, since 1 + 2 + 280 + 87 + 296 = 666.

It can be written as a sum of positive squares in only one way, i.e., 652087296 + 576000000 = 25536^2 + 24000^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65400 + ... + 82056.

Almost surely, 2^1228087296 is an apocalyptic number.

1228087296 is a gapful number since it is divisible by the number (16) 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 1228087296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1773902091).

1228087296 is an abundant number, since it is smaller than the sum of its proper divisors (2319716886).

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

1228087296 is an equidigital number, since it uses as much as digits as its factorization.

1228087296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16689 (or 16662 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 1228087296 is about 35044.0764752048. The cubic root of 1228087296 is about 1070.8856021576.

The spelling of 1228087296 in words is "one billion, two hundred twenty-eight million, eighty-seven thousand, two hundred ninety-six".