71422688 has 24 divisors (see below), whose sum is σ = 141486408. Its totient is φ = 35489664.

The previous prime is 71422651. The next prime is 71422709. The reversal of 71422688 is 88622417.

It is a super-2 number, since 2×71422688² = 10202400722290688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1631 + ... + 12062.

It is an arithmetic number, because the mean of its divisors is an integer number (5895267).

Almost surely, 2^71422688 is an apocalyptic number.

It is an amenable number.

71422688 is a deficient number, since it is larger than the sum of its proper divisors (70063720).

71422688 is a wasteful number, since it uses less digits than its factorization.

71422688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13866 (or 13858 counting only the distinct ones).

The product of its digits is 43008, while the sum is 38.

The square root of 71422688 is about 8451.1944717892. The cubic root of 71422688 is about 414.9018745117.

The spelling of 71422688 in words is "seventy-one million, four hundred twenty-two thousand, six hundred eighty-eight".