42016426 has 16 divisors (see below), whose sum is σ = 64318464. Its totient is φ = 20581344.

The previous prime is 42016421. The next prime is 42016433. The reversal of 42016426 is 62461024.

It is a self number, because there is not a number n which added to its sum of digits gives 42016426.

It is not an unprimeable number, because it can be changed into a prime (42016421) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20086 + ... + 22078.

It is an arithmetic number, because the mean of its divisors is an integer number (4019904).

Almost surely, 2^42016426 is an apocalyptic number.

42016426 is a deficient number, since it is larger than the sum of its proper divisors (22302038).

42016426 is a wasteful number, since it uses less digits than its factorization.

42016426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 42016426 is about 6482.0078679372. The cubic root of 42016426 is about 347.6479738313.

The spelling of 42016426 in words is "forty-two million, sixteen thousand, four hundred twenty-six".