71422656 has 112 divisors (see below), whose sum is σ = 199022208. Its totient is φ = 22579200.

The previous prime is 71422651. The next prime is 71422709. The reversal of 71422656 is 65622417.

It is not an unprimeable number, because it can be changed into a prime (71422651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338391 + ... + 338601.

It is an arithmetic number, because the mean of its divisors is an integer number (1776984).

Almost surely, 2^71422656 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 71422656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99511104).

71422656 is an abundant number, since it is smaller than the sum of its proper divisors (127599552).

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

71422656 is a wasteful number, since it uses less digits than its factorization.

71422656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 300 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 71422656 is about 8451.1925785655. The cubic root of 71422656 is about 414.9018125479.

The spelling of 71422656 in words is "seventy-one million, four hundred twenty-two thousand, six hundred fifty-six".