1228786316 has 48 divisors (see below), whose sum is σ = 2500968960. Its totient is φ = 523987200.

The previous prime is 1228786253. The next prime is 1228786319. The reversal of 1228786316 is 6136878221.

It is not an unprimeable number, because it can be changed into a prime (1228786319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9041 + ... + 50391.

It is an arithmetic number, because the mean of its divisors is an integer number (52103520).

Almost surely, 2^1228786316 is an apocalyptic number.

It is an amenable number.

1228786316 is an abundant number, since it is smaller than the sum of its proper divisors (1272182644).

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

1228786316 is a wasteful number, since it uses less digits than its factorization.

1228786316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41414 (or 41412 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 1228786316 is about 35054.0484965717. The cubic root of 1228786316 is about 1071.0887441964.

The spelling of 1228786316 in words is "one billion, two hundred twenty-eight million, seven hundred eighty-six thousand, three hundred sixteen".