71296530 has 32 divisors (see below), whose sum is σ = 172468224. Its totient is φ = 18861696.

The previous prime is 71296523. The next prime is 71296553. The reversal of 71296530 is 3569217.

It is a junction number, because it is equal to n+sod(n) for n = 71296491 and 71296500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5547 + ... + 13166.

It is an arithmetic number, because the mean of its divisors is an integer number (5389632).

Almost surely, 2^71296530 is an apocalyptic number.

71296530 is an abundant number, since it is smaller than the sum of its proper divisors (101171694).

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

71296530 is a wasteful number, since it uses less digits than its factorization.

71296530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18850.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 71296530 is about 8443.7272575563. The cubic root of 71296530 is about 414.6574421921.

The spelling of 71296530 in words is "seventy-one million, two hundred ninety-six thousand, five hundred thirty".