1226966389 has 8 divisors (see below), whose sum is σ = 1339333632. Its totient is φ = 1114736640.

The previous prime is 1226966353. The next prime is 1226966393. The reversal of 1226966389 is 9836696221.

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

It is a cyclic number.

It is not a de Polignac number, because 1226966389 - 2¹⁵ = 1226933621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226966309) 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, 15244 + ... + 51829.

It is an arithmetic number, because the mean of its divisors is an integer number (167416704).

Almost surely, 2^1226966389 is an apocalyptic number.

It is an amenable number.

1226966389 is a deficient number, since it is larger than the sum of its proper divisors (112367243).

1226966389 is a wasteful number, since it uses less digits than its factorization.

1226966389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68747.

The product of its digits is 1679616, while the sum is 52.

The square root of 1226966389 is about 35028.0800073313. The cubic root of 1226966389 is about 1070.5596946651.

The spelling of 1226966389 in words is "one billion, two hundred twenty-six million, nine hundred sixty-six thousand, three hundred eighty-nine".