1276740 has 72 divisors (see below), whose sum is σ = 3990168. Its totient is φ = 330240.

The previous prime is 1276739. The next prime is 1276747. The reversal of 1276740 is 476721.

It can be written as a sum of positive squares in 4 ways, for example, as 97344 + 1179396 = 312^2 + 1086^2 .

It is not an unprimeable number, because it can be changed into a prime (1276747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7294 + ... + 7466.

It is an arithmetic number, because the mean of its divisors is an integer number (55419).

2^1276740 is an apocalyptic number.

1276740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1276740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1995084).

1276740 is an abundant number, since it is smaller than the sum of its proper divisors (2713428).

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

1276740 is a wasteful number, since it uses less digits than its factorization.

1276740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 224 counting only the distinct ones).

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

The square root of 1276740 is about 1129.9292013219. The cubic root of 1276740 is about 108.4844492001.

It can be divided in two parts, 1276 and 740, that added together give a triangular number (2016 = T₆₃).

The spelling of 1276740 in words is "one million, two hundred seventy-six thousand, seven hundred forty".