42439814 has 8 divisors (see below), whose sum is σ = 65380368. Its totient is φ = 20646360.

The previous prime is 42439783. The next prime is 42439823. The reversal of 42439814 is 41893424.

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

It is a super-2 number, since 2×42439814² = 3602275624709192, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286682 + ... + 286829.

It is an arithmetic number, because the mean of its divisors is an integer number (8172546).

Almost surely, 2^42439814 is an apocalyptic number.

42439814 is a deficient number, since it is larger than the sum of its proper divisors (22940554).

42439814 is a wasteful number, since it uses less digits than its factorization.

42439814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573550.

The product of its digits is 27648, while the sum is 35.

The square root of 42439814 is about 6514.5847143160. The cubic root of 42439814 is about 348.8117911436.

The spelling of 42439814 in words is "forty-two million, four hundred thirty-nine thousand, eight hundred fourteen".