71481408 has 28 divisors (see below), whose sum is σ = 189128400. Its totient is φ = 23827072.

The previous prime is 71481367. The next prime is 71481419. The reversal of 71481408 is 80418417.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185958 + ... + 186341.

Almost surely, 2^71481408 is an apocalyptic number.

It is an amenable number.

71481408 is an abundant number, since it is smaller than the sum of its proper divisors (117646992).

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

71481408 is a wasteful number, since it uses less digits than its factorization.

71481408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372314 (or 372304 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 71481408 is about 8454.6678231614. The cubic root of 71481408 is about 415.0155469087.

The spelling of 71481408 in words is "seventy-one million, four hundred eighty-one thousand, four hundred eight".