71430080 has 28 divisors (see below), whose sum is σ = 170093640. Its totient is φ = 28571904.

The previous prime is 71430067. The next prime is 71430089. The reversal of 71430080 is 8003417.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71430089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111290 + ... + 111929.

Almost surely, 2^71430080 is an apocalyptic number.

It is an amenable number.

71430080 is an abundant number, since it is smaller than the sum of its proper divisors (98663560).

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

71430080 is a wasteful number, since it uses less digits than its factorization.

71430080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223236 (or 223226 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 71430080 is about 8451.6317951032. The cubic root of 71430080 is about 414.9161876520.

Adding to 71430080 its reverse (8003417), we get a palindrome (79433497).

The spelling of 71430080 in words is "seventy-one million, four hundred thirty thousand, eighty".