71267020 has 48 divisors (see below), whose sum is σ = 167269536. Its totient is φ = 25280000.

The previous prime is 71266999. The next prime is 71267059. The reversal of 71267020 is 2076217.

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, 5070 + ... + 12970.

It is an arithmetic number, because the mean of its divisors is an integer number (3484782).

Almost surely, 2^71267020 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 71267020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83634768).

71267020 is an abundant number, since it is smaller than the sum of its proper divisors (96002516).

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

71267020 is a wasteful number, since it uses less digits than its factorization.

71267020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7962 (or 7960 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 71267020 is about 8441.9796256565. The cubic root of 71267020 is about 414.6002246821.

The spelling of 71267020 in words is "seventy-one million, two hundred sixty-seven thousand, twenty".