1268049016 has 32 divisors (see below), whose sum is σ = 2620038960. Its totient is φ = 571640832.

The previous prime is 1268049011. The next prime is 1268049043. The reversal of 1268049016 is 6109408621.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268049011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137305 + ... + 146248.

Almost surely, 2^1268049016 is an apocalyptic number.

It is an amenable number.

1268049016 is an abundant number, since it is smaller than the sum of its proper divisors (1351989944).

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

1268049016 is a wasteful number, since it uses less digits than its factorization.

1268049016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283615 (or 283611 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 1268049016 is about 35609.6758760874. The cubic root of 1268049016 is about 1082.3773123386.

The spelling of 1268049016 in words is "one billion, two hundred sixty-eight million, forty-nine thousand, sixteen".