1271880 has 48 divisors (see below), whose sum is σ = 4134780. Its totient is φ = 339072.

The previous prime is 1271849. The next prime is 1271903. The reversal of 1271880 is 881721.

It can be written as a sum of positive squares in 2 ways, for example, as 1258884 + 12996 = 1122^2 + 114^2 .

It is a plaindrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1407 + ... + 2126.

2^1271880 is an apocalyptic number.

1271880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1271880 is an abundant number, since it is smaller than the sum of its proper divisors (2862900).

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

1271880 is a wasteful number, since it uses less digits than its factorization.

1271880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3550 (or 3543 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 1271880 is about 1127.7765736173. The cubic root of 1271880 is about 108.3466229587.

The spelling of 1271880 in words is "one million, two hundred seventy-one thousand, eight hundred eighty".