1269472668 has 48 divisors (see below), whose sum is σ = 3040402176. Its totient is φ = 412013440.

The previous prime is 1269472667. The next prime is 1269472691. The reversal of 1269472668 is 8662749621.

It is a super-2 number, since 2×1269472668² = 3223121709598076448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1269472668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1269472667) 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 15 ways as a sum of consecutive naturals, for example, 274705 + ... + 279287.

It is an arithmetic number, because the mean of its divisors is an integer number (63341712).

Almost surely, 2^1269472668 is an apocalyptic number.

It is an amenable number.

1269472668 is an abundant number, since it is smaller than the sum of its proper divisors (1770929508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1269472668 is a wasteful number, since it uses less digits than its factorization.

1269472668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5194 (or 5192 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 51.

The square root of 1269472668 is about 35629.6599478580. The cubic root of 1269472668 is about 1082.7822263162.

The spelling of 1269472668 in words is "one billion, two hundred sixty-nine million, four hundred seventy-two thousand, six hundred sixty-eight".