71049384 has 96 divisors (see below), whose sum is σ = 223616640. Its totient is φ = 19958400.

The previous prime is 71049371. The next prime is 71049403. The reversal of 71049384 is 48394017.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29589 + ... + 31899.

It is an arithmetic number, because the mean of its divisors is an integer number (2329340).

Almost surely, 2^71049384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71049384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111808320).

71049384 is an abundant number, since it is smaller than the sum of its proper divisors (152567256).

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

71049384 is a wasteful number, since it uses less digits than its factorization.

71049384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2391 (or 2384 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 71049384 is about 8429.0796650643. The cubic root of 71049384 is about 414.1777574545.

The spelling of 71049384 in words is "seventy-one million, forty-nine thousand, three hundred eighty-four".