71264222 has 4 divisors (see below), whose sum is σ = 106896336. Its totient is φ = 35632110.

The previous prime is 71264213. The next prime is 71264233. The reversal of 71264222 is 22246217.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 71264191 and 71264200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17816054 + ... + 17816057.

It is an arithmetic number, because the mean of its divisors is an integer number (26724084).

Almost surely, 2^71264222 is an apocalyptic number.

71264222 is a deficient number, since it is larger than the sum of its proper divisors (35632114).

71264222 is a wasteful number, since it uses less digits than its factorization.

71264222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35632113.

The product of its digits is 2688, while the sum is 26.

The square root of 71264222 is about 8441.8139046060. The cubic root of 71264222 is about 414.5947987660.

The spelling of 71264222 in words is "seventy-one million, two hundred sixty-four thousand, two hundred twenty-two".