42663886 has 8 divisors (see below), whose sum is σ = 65725560. Its totient is φ = 20755368.

The previous prime is 42663877. The next prime is 42663899. The reversal of 42663886 is 68836624.

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

It is a super-3 number, since 3×42663886³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288196 + ... + 288343.

It is an arithmetic number, because the mean of its divisors is an integer number (8215695).

Almost surely, 2^42663886 is an apocalyptic number.

42663886 is a deficient number, since it is larger than the sum of its proper divisors (23061674).

42663886 is a wasteful number, since it uses less digits than its factorization.

42663886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576578.

The product of its digits is 331776, while the sum is 43.

The square root of 42663886 is about 6531.7597935013. The cubic root of 42663886 is about 349.4245946794.

The spelling of 42663886 in words is "forty-two million, six hundred sixty-three thousand, eight hundred eighty-six".