71044452 has 36 divisors (see below), whose sum is σ = 186238416. Its totient is φ = 23681160.

The previous prime is 71044409. The next prime is 71044481. The reversal of 71044452 is 25444017.

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

It is a Harshad number since it is a multiple of its sum of digits (27).

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 11 ways as a sum of consecutive naturals, for example, 35574 + ... + 37517.

Almost surely, 2^71044452 is an apocalyptic number.

It is an amenable number.

71044452 is an abundant number, since it is smaller than the sum of its proper divisors (115193964).

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

71044452 is a wasteful number, since it uses less digits than its factorization.

71044452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73110 (or 73096 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 71044452 is about 8428.7871013569. The cubic root of 71044452 is about 414.1681736418.

Adding to 71044452 its reverse (25444017), we get a palindrome (96488469).

The spelling of 71044452 in words is "seventy-one million, forty-four thousand, four hundred fifty-two".