42819286 has 16 divisors (see below), whose sum is σ = 66170160. Its totient is φ = 20766240.

The previous prime is 42819251. The next prime is 42819289. The reversal of 42819286 is 68291824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42819289) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30316 + ... + 31696.

It is an arithmetic number, because the mean of its divisors is an integer number (4135635).

Almost surely, 2^42819286 is an apocalyptic number.

42819286 is a deficient number, since it is larger than the sum of its proper divisors (23350874).

42819286 is a wasteful number, since it uses less digits than its factorization.

42819286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839.

The product of its digits is 55296, while the sum is 40.

The square root of 42819286 is about 6543.6447030688. The cubic root of 42819286 is about 349.8483315647.

The spelling of 42819286 in words is "forty-two million, eight hundred nineteen thousand, two hundred eighty-six".