1267328 has 16 divisors (see below), whose sum is σ = 2525010. Its totient is φ = 633600.

The previous prime is 1267307. The next prime is 1267349. The reversal of 1267328 is 8237621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1267307) and next prime (1267349).

It can be written as a sum of positive squares in only one way, i.e., 760384 + 506944 = 872^2 + 712^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×1267328² = 3212240519168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1267328.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4823 + ... + 5078.

2^1267328 is an apocalyptic number.

It is an amenable number.

1267328 is a deficient number, since it is larger than the sum of its proper divisors (1257682).

1267328 is an frugal number, since it uses more digits than its factorization.

1267328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9915 (or 9903 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 1267328 is about 1125.7566344464. The cubic root of 1267328 is about 108.2172125917.

The spelling of 1267328 in words is "one million, two hundred sixty-seven thousand, three hundred twenty-eight".