71327940 has 48 divisors (see below), whose sum is σ = 200636352. Its totient is φ = 18933376.

The previous prime is 71327933. The next prime is 71327951. The reversal of 71327940 is 4972317.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11002 + ... + 16238.

It is an arithmetic number, because the mean of its divisors is an integer number (4179924).

Almost surely, 2^71327940 is an apocalyptic number.

It is an amenable number.

71327940 is an abundant number, since it is smaller than the sum of its proper divisors (129308412).

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

71327940 is a wasteful number, since it uses less digits than its factorization.

71327940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5476 (or 5474 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 71327940 is about 8445.5870133461. The cubic root of 71327940 is about 414.7183263056.

The spelling of 71327940 in words is "seventy-one million, three hundred twenty-seven thousand, nine hundred forty".