71582442 has 8 divisors (see below), whose sum is σ = 143164896. Its totient is φ = 23860812.

The previous prime is 71582389. The next prime is 71582447. The reversal of 71582442 is 24428517.

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

71582442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (71582447) 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, 5965198 + ... + 5965209.

It is an arithmetic number, because the mean of its divisors is an integer number (17895612).

Almost surely, 2^71582442 is an apocalyptic number.

71582442 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.

71582442 is a wasteful number, since it uses less digits than its factorization.

71582442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11930412.

The product of its digits is 17920, while the sum is 33.

The square root of 71582442 is about 8460.6407558766. The cubic root of 71582442 is about 415.2109867304.

The spelling of 71582442 in words is "seventy-one million, five hundred eighty-two thousand, four hundred forty-two".