1223723996 has 36 divisors (see below), whose sum is σ = 2381351784. Its totient is φ = 545688000.

The previous prime is 1223723957. The next prime is 1223724001. The reversal of 1223723996 is 6993273221.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118646 + ... + 128546.

Almost surely, 2^1223723996 is an apocalyptic number.

It is an amenable number.

1223723996 is a deficient number, since it is larger than the sum of its proper divisors (1157627788).

1223723996 is a wasteful number, since it uses less digits than its factorization.

1223723996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10022 (or 9967 counting only the distinct ones).

The product of its digits is 244944, while the sum is 44.

The square root of 1223723996 is about 34981.7666220561. The cubic root of 1223723996 is about 1069.6158390328.

The spelling of 1223723996 in words is "one billion, two hundred twenty-three million, seven hundred twenty-three thousand, nine hundred ninety-six".