42195216 has 80 divisors (see below), whose sum is σ = 128626688. Its totient is φ = 11664000.

The previous prime is 42195199. The next prime is 42195221. The reversal of 42195216 is 61259124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8391 + ... + 12441.

Almost surely, 2^42195216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42195216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64313344).

42195216 is an abundant number, since it is smaller than the sum of its proper divisors (86431472).

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

42195216 is a wasteful number, since it uses less digits than its factorization.

42195216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4100 (or 4094 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 42195216 is about 6495.7844791834. The cubic root of 42195216 is about 348.1403846343.

The spelling of 42195216 in words is "forty-two million, one hundred ninety-five thousand, two hundred sixteen".