71350580 has 24 divisors (see below), whose sum is σ = 171241728. Its totient is φ = 24463008.

The previous prime is 71350579. The next prime is 71350597. The reversal of 71350580 is 8505317.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254684 + ... + 254963.

It is an arithmetic number, because the mean of its divisors is an integer number (7135072).

Almost surely, 2^71350580 is an apocalyptic number.

71350580 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

71350580 is an abundant number, since it is smaller than the sum of its proper divisors (99891148).

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

71350580 is a wasteful number, since it uses less digits than its factorization.

71350580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509663 (or 509661 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 71350580 is about 8446.9272519657. The cubic root of 71350580 is about 414.7621998549.

Adding to 71350580 its reverse (8505317), we get a palindrome (79855897).

The spelling of 71350580 in words is "seventy-one million, three hundred fifty thousand, five hundred eighty".