42719866 has 24 divisors (see below), whose sum is σ = 78468480. Its totient is φ = 17344152.

The previous prime is 42719849. The next prime is 42719881. The reversal of 42719866 is 66891724.

It is a super-3 number, since 3×42719866³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9610 + ... + 13333.

It is an arithmetic number, because the mean of its divisors is an integer number (3269520).

Almost surely, 2^42719866 is an apocalyptic number.

42719866 is a deficient number, since it is larger than the sum of its proper divisors (35748614).

42719866 is a wasteful number, since it uses less digits than its factorization.

42719866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22978 (or 22971 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 42719866 is about 6536.0436045057. The cubic root of 42719866 is about 349.5773565078.

The spelling of 42719866 in words is "forty-two million, seven hundred nineteen thousand, eight hundred sixty-six".