1271110434 has 96 divisors (see below), whose sum is σ = 2979265536. Its totient is φ = 358452480.

The previous prime is 1271110429. The next prime is 1271110457. The reversal of 1271110434 is 4340111721.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1964299 + ... + 1964945.

It is an arithmetic number, because the mean of its divisors is an integer number (31034016).

Almost surely, 2^1271110434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1271110434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1489632768).

1271110434 is an abundant number, since it is smaller than the sum of its proper divisors (1708155102).

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

1271110434 is a wasteful number, since it uses less digits than its factorization.

1271110434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800 (or 783 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 1271110434 is about 35652.6357230430. The cubic root of 1271110434 is about 1083.2476641578.

The spelling of 1271110434 in words is "one billion, two hundred seventy-one million, one hundred ten thousand, four hundred thirty-four".