71212460 has 48 divisors (see below), whose sum is σ = 165019680. Its totient is φ = 25597440.

The previous prime is 71212447. The next prime is 71212483. The reversal of 71212460 is 6421217.

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, 17762 + ... + 21398.

It is an arithmetic number, because the mean of its divisors is an integer number (3437910).

Almost surely, 2^71212460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71212460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82509840).

71212460 is an abundant number, since it is smaller than the sum of its proper divisors (93807220).

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

71212460 is a wasteful number, since it uses less digits than its factorization.

71212460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3746 (or 3744 counting only the distinct ones).

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

The square root of 71212460 is about 8438.7475374015. The cubic root of 71212460 is about 414.4943956311.

Adding to 71212460 its reverse (6421217), we get a palindrome (77633677).

The spelling of 71212460 in words is "seventy-one million, two hundred twelve thousand, four hundred sixty".