71741780 has 24 divisors (see below), whose sum is σ = 164354400. Its totient is φ = 26087840.

The previous prime is 71741731. The next prime is 71741783. The reversal of 71741780 is 8714717.

It is a self number, because there is not a number n which added to its sum of digits gives 71741780.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71741783) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 162830 + ... + 163269.

It is an arithmetic number, because the mean of its divisors is an integer number (6848100).

Almost surely, 2^71741780 is an apocalyptic number.

It is an amenable number.

71741780 is an abundant number, since it is smaller than the sum of its proper divisors (92612620).

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

71741780 is a wasteful number, since it uses less digits than its factorization.

71741780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326119 (or 326117 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 35.

The square root of 71741780 is about 8470.0519478926. The cubic root of 71741780 is about 415.5188362461.

The spelling of 71741780 in words is "seventy-one million, seven hundred forty-one thousand, seven hundred eighty".