1276560 has 100 divisors (see below), whose sum is σ = 4456188. Its totient is φ = 338688.

The previous prime is 1276543. The next prime is 1276571. The reversal of 1276560 is 656721.

1276560 is a `hidden beast` number, since 1 + 2 + 7 + 656 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 944784 + 331776 = 972^2 + 576^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is a nialpdrome in base 6.

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, 6382 + ... + 6578.

2^1276560 is an apocalyptic number.

1276560 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 1276560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2228094).

1276560 is an abundant number, since it is smaller than the sum of its proper divisors (3179628).

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

1276560 is a wasteful number, since it uses less digits than its factorization.

1276560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 1276560 is about 1129.8495475062. The cubic root of 1276560 is about 108.4793507675.

The spelling of 1276560 in words is "one million, two hundred seventy-six thousand, five hundred sixty".