71242036 has 24 divisors (see below), whose sum is σ = 134822016. Its totient is φ = 32810880.

The previous prime is 71241979. The next prime is 71242037. The reversal of 71242036 is 63024217.

71242036 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

71242036 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 71242036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71242037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7950 + ... + 14341.

It is an arithmetic number, because the mean of its divisors is an integer number (5617584).

Almost surely, 2^71242036 is an apocalyptic number.

It is an amenable number.

71242036 is a deficient number, since it is larger than the sum of its proper divisors (63579980).

71242036 is a wasteful number, since it uses less digits than its factorization.

71242036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22359 (or 22357 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 71242036 is about 8440.4997482377. The cubic root of 71242036 is about 414.5517703728.

The spelling of 71242036 in words is "seventy-one million, two hundred forty-two thousand, thirty-six".