1228266717 has 8 divisors (see below), whose sum is σ = 1690517760. Its totient is φ = 792430080.

The previous prime is 1228266709. The next prime is 1228266727. The reversal of 1228266717 is 7176628221.

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

It is not a de Polignac number, because 1228266717 - 2³ = 1228266709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228266707) 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, 6603492 + ... + 6603677.

It is an arithmetic number, because the mean of its divisors is an integer number (211314720).

Almost surely, 2^1228266717 is an apocalyptic number.

It is an amenable number.

1228266717 is a deficient number, since it is larger than the sum of its proper divisors (462251043).

1228266717 is a wasteful number, since it uses less digits than its factorization.

1228266717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13207203.

The product of its digits is 112896, while the sum is 42.

The square root of 1228266717 is about 35046.6363150588. The cubic root of 1228266717 is about 1070.9377510046.

The spelling of 1228266717 in words is "one billion, two hundred twenty-eight million, two hundred sixty-six thousand, seven hundred seventeen".