1268615044 has 12 divisors (see below), whose sum is σ = 2220908368. Its totient is φ = 634069800.

The previous prime is 1268615039. The next prime is 1268615057. The reversal of 1268615044 is 4405168621.

It is a junction number, because it is equal to n+sod(n) for n = 1268614994 and 1268615012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47142 + ... + 68989.

Almost surely, 2^1268615044 is an apocalyptic number.

It is an amenable number.

1268615044 is a deficient number, since it is larger than the sum of its proper divisors (952293324).

1268615044 is a wasteful number, since it uses less digits than its factorization.

1268615044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118866 (or 118864 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 1268615044 is about 35617.6226606999. The cubic root of 1268615044 is about 1082.5383378514.

It can be divided in two parts, 12686 and 15044, that added together give a triangular number (27730 = T₂₃₅).

The spelling of 1268615044 in words is "one billion, two hundred sixty-eight million, six hundred fifteen thousand, forty-four".