71424222 has 32 divisors (see below), whose sum is σ = 145774080. Its totient is φ = 23325120.

The previous prime is 71424203. The next prime is 71424233. The reversal of 71424222 is 22242417.

It is a junction number, because it is equal to n+sod(n) for n = 71424192 and 71424201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77947 + ... + 78857.

It is an arithmetic number, because the mean of its divisors is an integer number (4555440).

Almost surely, 2^71424222 is an apocalyptic number.

71424222 is an abundant number, since it is smaller than the sum of its proper divisors (74349858).

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

71424222 is a wasteful number, since it uses less digits than its factorization.

71424222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168.

The product of its digits is 1792, while the sum is 24.

The square root of 71424222 is about 8451.2852277035. The cubic root of 71424222 is about 414.9048448793.

Adding to 71424222 its reverse (22242417), we get a palindrome (93666639).

The spelling of 71424222 in words is "seventy-one million, four hundred twenty-four thousand, two hundred twenty-two".