71796280 has 64 divisors (see below), whose sum is σ = 167580000. Its totient is φ = 27661824.

The previous prime is 71796247. The next prime is 71796311. The reversal of 71796280 is 8269717.

It is a Harshad number since it is a multiple of its sum of digits (40).

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 15 ways as a sum of consecutive naturals, for example, 205546 + ... + 205894.

Almost surely, 2^71796280 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 71796280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83790000).

71796280 is an abundant number, since it is smaller than the sum of its proper divisors (95783720).

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

71796280 is a wasteful number, since it uses less digits than its factorization.

71796280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 71796280 is about 8473.2685546960. The cubic root of 71796280 is about 415.6240285277.

The spelling of 71796280 in words is "seventy-one million, seven hundred ninety-six thousand, two hundred eighty".