1271071404 has 36 divisors (see below), whose sum is σ = 3243023784. Its totient is φ = 419729472.

The previous prime is 1271071349. The next prime is 1271071423. The reversal of 1271071404 is 4041701721.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 161137 + ... + 168840.

It is an arithmetic number, because the mean of its divisors is an integer number (90083994).

Almost surely, 2^1271071404 is an apocalyptic number.

It is an amenable number.

1271071404 is an abundant number, since it is smaller than the sum of its proper divisors (1971952380).

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

1271071404 is a wasteful number, since it uses less digits than its factorization.

1271071404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330094 (or 330089 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 1271071404 is about 35652.0883539801. The cubic root of 1271071404 is about 1083.2365768471.

The spelling of 1271071404 in words is "one billion, two hundred seventy-one million, seventy-one thousand, four hundred four".