1267264160 has 24 divisors (see below), whose sum is σ = 2993911956. Its totient is φ = 506905600.

The previous prime is 1267264153. The next prime is 1267264217. The reversal of 1267264160 is 614627621.

It can be written as a sum of positive squares in 2 ways, for example, as 1222481296 + 44782864 = 34964^2 + 6692^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1267264160.

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, 3960041 + ... + 3960360.

Almost surely, 2^1267264160 is an apocalyptic number.

1267264160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1267264160 is an abundant number, since it is smaller than the sum of its proper divisors (1726647796).

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

1267264160 is an equidigital number, since it uses as much as digits as its factorization.

1267264160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7920416 (or 7920408 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 1267264160 is about 35598.6539071353. The cubic root of 1267264160 is about 1082.1539546069.

The spelling of 1267264160 in words is "one billion, two hundred sixty-seven million, two hundred sixty-four thousand, one hundred sixty".