1275880 has 32 divisors (see below), whose sum is σ = 2903040. Its totient is φ = 504640.

The previous prime is 1275877. The next prime is 1275889. The reversal of 1275880 is 885721.

It is not an unprimeable number, because it can be changed into a prime (1275889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6585 + ... + 6775.

It is an arithmetic number, because the mean of its divisors is an integer number (90720).

2^1275880 is an apocalyptic number.

1275880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1275880 is an abundant number, since it is smaller than the sum of its proper divisors (1627160).

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

1275880 is a wasteful number, since it uses less digits than its factorization.

1275880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 1275880 is about 1129.5485823992. The cubic root of 1275880 is about 108.4600856957.

The spelling of 1275880 in words is "one million, two hundred seventy-five thousand, eight hundred eighty".