1267338996 has 216 divisors, whose sum is σ = 4078226880. Its totient is φ = 324783360.

The previous prime is 1267338991. The next prime is 1267338997. The reversal of 1267338996 is 6998337621.

It is a super-2 number, since 2×1267338996² = 3212296261564576032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1267338991) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2713555 + ... + 2714021.

It is an arithmetic number, because the mean of its divisors is an integer number (18880680).

Almost surely, 2^1267338996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1267338996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2039113440).

1267338996 is an abundant number, since it is smaller than the sum of its proper divisors (2810887884).

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

1267338996 is a wasteful number, since it uses less digits than its factorization.

1267338996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595 (or 579 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 1267338996 is about 35599.7049987777. The cubic root of 1267338996 is about 1082.1752557378.

The spelling of 1267338996 in words is "one billion, two hundred sixty-seven million, three hundred thirty-eight thousand, nine hundred ninety-six".