71445382 has 4 divisors (see below), whose sum is σ = 107168076. Its totient is φ = 35722690.

The previous prime is 71445371. The next prime is 71445443. The reversal of 71445382 is 28354417.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17861344 + ... + 17861347.

It is an arithmetic number, because the mean of its divisors is an integer number (26792019).

Almost surely, 2^71445382 is an apocalyptic number.

71445382 is a deficient number, since it is larger than the sum of its proper divisors (35722694).

71445382 is a wasteful number, since it uses less digits than its factorization.

71445382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35722693.

The product of its digits is 26880, while the sum is 34.

The square root of 71445382 is about 8452.5370155948. The cubic root of 71445382 is about 414.9458137991.

Adding to 71445382 its reverse (28354417), we get a palindrome (99799799).

The spelling of 71445382 in words is "seventy-one million, four hundred forty-five thousand, three hundred eighty-two".