4042216 has 8 divisors (see below), whose sum is σ = 7579170. Its totient is φ = 2021104.

The previous prime is 4042211. The next prime is 4042217. The reversal of 4042216 is 6122404.

It can be written as a sum of positive squares in only one way, i.e., 4040100 + 2116 = 2010^2 + 46^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4042193 and 4042202.

It is not an unprimeable number, because it can be changed into a prime (4042211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252631 + ... + 252646.

Almost surely, 2^4042216 is an apocalyptic number.

It is an amenable number.

4042216 is a deficient number, since it is larger than the sum of its proper divisors (3536954).

4042216 is a wasteful number, since it uses less digits than its factorization.

4042216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505283 (or 505279 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 4042216 is about 2010.5262992560. The cubic root of 4042216 is about 159.2965997067.

The spelling of 4042216 in words is "four million, forty-two thousand, two hundred sixteen".