1268555044 has 6 divisors (see below), whose sum is σ = 2219971334. Its totient is φ = 634277520.

The previous prime is 1268555023. The next prime is 1268555059. The reversal of 1268555044 is 4405558621.

It can be written as a sum of positive squares in only one way, i.e., 1261102144 + 7452900 = 35512^2 + 2730^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1268554988 and 1268555006.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158569377 + ... + 158569384.

Almost surely, 2^1268555044 is an apocalyptic number.

It is an amenable number.

1268555044 is a deficient number, since it is larger than the sum of its proper divisors (951416290).

1268555044 is a wasteful number, since it uses less digits than its factorization.

1268555044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317138765 (or 317138763 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 40.

The square root of 1268555044 is about 35616.7803710554. The cubic root of 1268555044 is about 1082.5212711233.

The spelling of 1268555044 in words is "one billion, two hundred sixty-eight million, five hundred fifty-five thousand, forty-four".