71938842 has 8 divisors (see below), whose sum is σ = 143877696. Its totient is φ = 23979612.

The previous prime is 71938829. The next prime is 71938843. The reversal of 71938842 is 24883917.

It is a sphenic number, since it is the product of 3 distinct primes.

71938842 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 71938794 and 71938803.

It is not an unprimeable number, because it can be changed into a prime (71938843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5994898 + ... + 5994909.

It is an arithmetic number, because the mean of its divisors is an integer number (17984712).

Almost surely, 2^71938842 is an apocalyptic number.

71938842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

71938842 is a wasteful number, since it uses less digits than its factorization.

71938842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11989812.

The product of its digits is 96768, while the sum is 42.

The square root of 71938842 is about 8481.6768389275. The cubic root of 71938842 is about 415.8989407191.

The spelling of 71938842 in words is "seventy-one million, nine hundred thirty-eight thousand, eight hundred forty-two".