42709336 has 8 divisors (see below), whose sum is σ = 80080020. Its totient is φ = 21354664.

The previous prime is 42709327. The next prime is 42709343. The reversal of 42709336 is 63390724.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×42709336³ (a number of 24 digits) contains 333 as substring.

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, 2669326 + ... + 2669341.

Almost surely, 2^42709336 is an apocalyptic number.

It is an amenable number.

42709336 is a deficient number, since it is larger than the sum of its proper divisors (37370684).

42709336 is a wasteful number, since it uses less digits than its factorization.

42709336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5338673 (or 5338669 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 42709336 is about 6535.2380216791. The cubic root of 42709336 is about 349.5486317606.

The spelling of 42709336 in words is "forty-two million, seven hundred nine thousand, three hundred thirty-six".