1223766994 has 8 divisors (see below), whose sum is σ = 1865743308. Its totient is φ = 601852560.

The previous prime is 1223766983. The next prime is 1223766997. The reversal of 1223766994 is 4996673221.

It can be written as a sum of positive squares in 2 ways, for example, as 758286369 + 465480625 = 27537^2 + 21575^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1223766997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5015317 + ... + 5015560.

Almost surely, 2^1223766994 is an apocalyptic number.

1223766994 is a deficient number, since it is larger than the sum of its proper divisors (641976314).

1223766994 is a wasteful number, since it uses less digits than its factorization.

1223766994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10030940.

The product of its digits is 979776, while the sum is 49.

The square root of 1223766994 is about 34982.3811939668. The cubic root of 1223766994 is about 1069.6283665862.

The spelling of 1223766994 in words is "one billion, two hundred twenty-three million, seven hundred sixty-six thousand, nine hundred ninety-four".