71396880 has 40 divisors (see below), whose sum is σ = 221331072. Its totient is φ = 19039104.

The previous prime is 71396839. The next prime is 71396881. The reversal of 71396880 is 8869317.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (71396881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148504 + ... + 148983.

Almost surely, 2^71396880 is an apocalyptic number.

It is an amenable number.

71396880 is an abundant number, since it is smaller than the sum of its proper divisors (149934192).

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

71396880 is a wasteful number, since it uses less digits than its factorization.

71396880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297503 (or 297497 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 71396880 is about 8449.6674490775. The cubic root of 71396880 is about 414.8518946997.

The spelling of 71396880 in words is "seventy-one million, three hundred ninety-six thousand, eight hundred eighty".