1276075340 has 48 divisors (see below), whose sum is σ = 2836535520. Its totient is φ = 480867840.

The previous prime is 1276075331. The next prime is 1276075363. The reversal of 1276075340 is 435706721.

It is a super-2 number, since 2×1276075340² = 3256736546712231200, 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 1276075340.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59504 + ... + 78056.

It is an arithmetic number, because the mean of its divisors is an integer number (59094490).

Almost surely, 2^1276075340 is an apocalyptic number.

1276075340 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 1276075340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1418267760).

1276075340 is an abundant number, since it is smaller than the sum of its proper divisors (1560460180).

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

1276075340 is a wasteful number, since it uses less digits than its factorization.

1276075340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18762 (or 18760 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 1276075340 is about 35722.1967409621. The cubic root of 1276075340 is about 1084.6562057147.

The spelling of 1276075340 in words is "one billion, two hundred seventy-six million, seventy-five thousand, three hundred forty".