1269264 has 40 divisors (see below), whose sum is σ = 3388672. Its totient is φ = 408960.

The previous prime is 1269263. The next prime is 1269283. The reversal of 1269264 is 4629621.

It is a super-2 number, since 2×1269264² = 3222062203392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1269263) 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, 1062 + ... + 1914.

2^1269264 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 1269264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1694336).

1269264 is an abundant number, since it is smaller than the sum of its proper divisors (2119408).

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

1269264 is a wasteful number, since it uses less digits than its factorization.

1269264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895 (or 889 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 1269264 is about 1126.6161724385. The cubic root of 1269264 is about 108.2722896069.

The spelling of 1269264 in words is "one million, two hundred sixty-nine thousand, two hundred sixty-four".