42220016 has 20 divisors (see below), whose sum is σ = 84441024. Its totient is φ = 20428800.

The previous prime is 42219979. The next prime is 42220081. The reversal of 42220016 is 61002224.

42220016 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 42219976 and 42220003.

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, 42065 + ... + 43056.

Almost surely, 2^42220016 is an apocalyptic number.

It is an amenable number.

42220016 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42220016 is a wasteful number, since it uses less digits than its factorization.

42220016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85160 (or 85154 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 42220016 is about 6497.6931291036. The cubic root of 42220016 is about 348.2085771247.

The spelling of 42220016 in words is "forty-two million, two hundred twenty thousand, sixteen".