1268629072 has 10 divisors (see below), whose sum is σ = 2457968858. Its totient is φ = 634314528.

The previous prime is 1268629057. The next prime is 1268629073. The reversal of 1268629072 is 2709268621.

It can be written as a sum of positive squares in only one way, i.e., 1225280016 + 43349056 = 35004^2 + 6584^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268629073) 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 as a sum of consecutive naturals, namely, 39644643 + ... + 39644674.

Almost surely, 2^1268629072 is an apocalyptic number.

It is an amenable number.

1268629072 is a deficient number, since it is larger than the sum of its proper divisors (1189339786).

1268629072 is an equidigital number, since it uses as much as digits as its factorization.

1268629072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79289325 (or 79289319 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 1268629072 is about 35617.8195851459. The cubic root of 1268629072 is about 1082.5423279749.

The spelling of 1268629072 in words is "one billion, two hundred sixty-eight million, six hundred twenty-nine thousand, seventy-two".