71942688 has 48 divisors (see below), whose sum is σ = 209835360. Its totient is φ = 23980608.

The previous prime is 71942681. The next prime is 71942701. The reversal of 71942688 is 88624917.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (71942681) 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, 40770 + ... + 42497.

It is an arithmetic number, because the mean of its divisors is an integer number (4371570).

Almost surely, 2^71942688 is an apocalyptic number.

It is an amenable number.

71942688 is an abundant number, since it is smaller than the sum of its proper divisors (137892672).

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

71942688 is a wasteful number, since it uses less digits than its factorization.

71942688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83286 (or 83272 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 71942688 is about 8481.9035599328. The cubic root of 71942688 is about 415.9063521942.

The spelling of 71942688 in words is "seventy-one million, nine hundred forty-two thousand, six hundred eighty-eight".