42216006 has 16 divisors (see below), whose sum is σ = 96493824. Its totient is φ = 12061704.

The previous prime is 42215989. The next prime is 42216007. The reversal of 42216006 is 60061224.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42216007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502530 + ... + 502613.

It is an arithmetic number, because the mean of its divisors is an integer number (6030864).

Almost surely, 2^42216006 is an apocalyptic number.

42216006 is an abundant number, since it is smaller than the sum of its proper divisors (54277818).

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

42216006 is a wasteful number, since it uses less digits than its factorization.

42216006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005155.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 42216006 is about 6497.3845507250. The cubic root of 42216006 is about 348.1975526491.

The spelling of 42216006 in words is "forty-two million, two hundred sixteen thousand, six".