1267313328 has 30 divisors (see below), whose sum is σ = 3546717564. Its totient is φ = 422437728.

The previous prime is 1267313323. The next prime is 1267313353. The reversal of 1267313328 is 8233137621.

1267313328 is a `hidden beast` number, since 12 + 6 + 7 + 313 + 328 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1267313292 and 1267313301.

It is not an unprimeable number, because it can be changed into a prime (1267313323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4400250 + ... + 4400537.

Almost surely, 2^1267313328 is an apocalyptic number.

1267313328 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1267313328 is an abundant number, since it is smaller than the sum of its proper divisors (2279404236).

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

1267313328 is a wasteful number, since it uses less digits than its factorization.

1267313328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8800801 (or 8800792 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 1267313328 is about 35599.3444883470. The cubic root of 1267313328 is about 1082.1679497573.

The spelling of 1267313328 in words is "one billion, two hundred sixty-seven million, three hundred thirteen thousand, three hundred twenty-eight".