1223677636 has 24 divisors (see below), whose sum is σ = 2198748384. Its totient is φ = 595533120.

The previous prime is 1223677633. The next prime is 1223677657. The reversal of 1223677636 is 6367763221.

It is a junction number, because it is equal to n+sod(n) for n = 1223677592 and 1223677601.

It is not an unprimeable number, because it can be changed into a prime (1223677633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64231 + ... + 81073.

It is an arithmetic number, because the mean of its divisors is an integer number (91614516).

Almost surely, 2^1223677636 is an apocalyptic number.

It is an amenable number.

1223677636 is a deficient number, since it is larger than the sum of its proper divisors (975070748).

1223677636 is a wasteful number, since it uses less digits than its factorization.

1223677636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17331 (or 17329 counting only the distinct ones).

The product of its digits is 381024, while the sum is 43.

The square root of 1223677636 is about 34981.1039848659. The cubic root of 1223677636 is about 1069.6023316252.

The spelling of 1223677636 in words is "one billion, two hundred twenty-three million, six hundred seventy-seven thousand, six hundred thirty-six".