1268839496 has 16 divisors (see below), whose sum is σ = 2387666940. Its totient is φ = 632128320.

The previous prime is 1268839477. The next prime is 1268839511. The reversal of 1268839496 is 6949388621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 949502596 + 319336900 = 30814^2 + 17870^2 .

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 3 ways as a sum of consecutive naturals, for example, 284075 + ... + 288506.

Almost surely, 2^1268839496 is an apocalyptic number.

It is an amenable number.

1268839496 is a deficient number, since it is larger than the sum of its proper divisors (1118827444).

1268839496 is a wasteful number, since it uses less digits than its factorization.

1268839496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572864 (or 572860 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 56.

The square root of 1268839496 is about 35620.7733773426. The cubic root of 1268839496 is about 1082.6021774346.

The spelling of 1268839496 in words is "one billion, two hundred sixty-eight million, eight hundred thirty-nine thousand, four hundred ninety-six".