71696040 has 64 divisors (see below), whose sum is σ = 231638400. Its totient is φ = 17647872.

The previous prime is 71696029. The next prime is 71696041. The reversal of 71696040 is 4069617.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 71695992 and 71696010.

It is not an unprimeable number, because it can be changed into a prime (71696041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21420 + ... + 24539.

It is an arithmetic number, because the mean of its divisors is an integer number (3619350).

Almost surely, 2^71696040 is an apocalyptic number.

It is an amenable number.

71696040 is an abundant number, since it is smaller than the sum of its proper divisors (159942360).

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

71696040 is a wasteful number, since it uses less digits than its factorization.

71696040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45986 (or 45982 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 71696040 is about 8467.3514158797. The cubic root of 71696040 is about 415.4305108094.

The spelling of 71696040 in words is "seventy-one million, six hundred ninety-six thousand, forty".