71045844 has 12 divisors (see below), whose sum is σ = 165773664. Its totient is φ = 23681944.

The previous prime is 71045837. The next prime is 71045869. The reversal of 71045844 is 44854017.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2960232 + ... + 2960255.

It is an arithmetic number, because the mean of its divisors is an integer number (13814472).

Almost surely, 2^71045844 is an apocalyptic number.

It is an amenable number.

71045844 is an abundant number, since it is smaller than the sum of its proper divisors (94727820).

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

71045844 is a wasteful number, since it uses less digits than its factorization.

71045844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5920494 (or 5920492 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 71045844 is about 8428.8696751107. The cubic root of 71045844 is about 414.1708786071.

The spelling of 71045844 in words is "seventy-one million, forty-five thousand, eight hundred forty-four".