71335442 has 4 divisors (see below), whose sum is σ = 107003166. Its totient is φ = 35667720.

The previous prime is 71335393. The next prime is 71335457. The reversal of 71335442 is 24453317.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 70576801 + 758641 = 8401^2 + 871^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17833859 + ... + 17833862.

Almost surely, 2^71335442 is an apocalyptic number.

71335442 is a deficient number, since it is larger than the sum of its proper divisors (35667724).

71335442 is a wasteful number, since it uses less digits than its factorization.

71335442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35667723.

The product of its digits is 10080, while the sum is 29.

The square root of 71335442 is about 8446.0311389433. The cubic root of 71335442 is about 414.7328652919.

Adding to 71335442 its reverse (24453317), we get a palindrome (95788759).

The spelling of 71335442 in words is "seventy-one million, three hundred thirty-five thousand, four hundred forty-two".