1268783970 has 16 divisors (see below), whose sum is σ = 3045081600. Its totient is φ = 338342384.

The previous prime is 1268783969. The next prime is 1268784031. The reversal of 1268783970 is 793878621.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21146370 + ... + 21146429.

It is an arithmetic number, because the mean of its divisors is an integer number (190317600).

Almost surely, 2^1268783970 is an apocalyptic number.

1268783970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1268783970 is an abundant number, since it is smaller than the sum of its proper divisors (1776297630).

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

1268783970 is a wasteful number, since it uses less digits than its factorization.

1268783970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42292809.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The square root of 1268783970 is about 35619.9939640646. The cubic root of 1268783970 is about 1082.5863851967.

The spelling of 1268783970 in words is "one billion, two hundred sixty-eight million, seven hundred eighty-three thousand, nine hundred seventy".