1228763282 has 8 divisors (see below), whose sum is σ = 1846124400. Its totient is φ = 613388484.

The previous prime is 1228763251. The next prime is 1228763309. The reversal of 1228763282 is 2823678221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495032 + ... + 497507.

It is an arithmetic number, because the mean of its divisors is an integer number (230765550).

Almost surely, 2^1228763282 is an apocalyptic number.

1228763282 is a deficient number, since it is larger than the sum of its proper divisors (617361118).

1228763282 is an equidigital number, since it uses as much as digits as its factorization.

1228763282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993160.

The product of its digits is 129024, while the sum is 41.

The square root of 1228763282 is about 35053.7199452497. The cubic root of 1228763282 is about 1071.0820515187.

The spelling of 1228763282 in words is "one billion, two hundred twenty-eight million, seven hundred sixty-three thousand, two hundred eighty-two".