1276722 has 48 divisors (see below), whose sum is σ = 2987712. Its totient is φ = 408240.

The previous prime is 1276721. The next prime is 1276733. The reversal of 1276722 is 2276721.

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

It is not an unprimeable number, because it can be changed into a prime (1276721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17947 + ... + 18017.

It is an arithmetic number, because the mean of its divisors is an integer number (62244).

2^1276722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1276722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1493856).

1276722 is an abundant number, since it is smaller than the sum of its proper divisors (1710990).

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

1276722 is an equidigital number, since it uses as much as digits as its factorization.

1276722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 113 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 1276722 is about 1129.9212361930. The cubic root of 1276722 is about 108.4839393784.

Subtracting 1276722 from its reverse (2276721), we obtain a palindrome (999999).

The spelling of 1276722 in words is "one million, two hundred seventy-six thousand, seven hundred twenty-two".