71226036 has 72 divisors (see below), whose sum is σ = 211352960. Its totient is φ = 19797696.

The previous prime is 71226013. The next prime is 71226037. The reversal of 71226036 is 63062217.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71226037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5505 + ... + 13143.

Almost surely, 2^71226036 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 71226036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105676480).

71226036 is an abundant number, since it is smaller than the sum of its proper divisors (140126924).

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

71226036 is a wasteful number, since it uses less digits than its factorization.

71226036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7693 (or 7688 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 71226036 is about 8439.5518838384. The cubic root of 71226036 is about 414.5207338045.

The spelling of 71226036 in words is "seventy-one million, two hundred twenty-six thousand, thirty-six".