1263276 has 60 divisors (see below), whose sum is σ = 3781008. Its totient is φ = 360288.

The previous prime is 1263263. The next prime is 1263299. The reversal of 1263276 is 6723621.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1990 + ... + 2546.

2^1263276 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 1263276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1890504).

1263276 is an abundant number, since it is smaller than the sum of its proper divisors (2517732).

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

1263276 is a wasteful number, since it uses less digits than its factorization.

1263276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580 (or 569 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 1263276 is about 1123.9555151339. The cubic root of 1263276 is about 108.1017559488.

Adding to 1263276 its reverse (6723621), we get a palindrome (7986897).

The spelling of 1263276 in words is "one million, two hundred sixty-three thousand, two hundred seventy-six".