4019218 has 8 divisors (see below), whose sum is σ = 6890112. Its totient is φ = 1722516.

The previous prime is 4019207. The next prime is 4019219. The reversal of 4019218 is 8129104.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×4019218² = 32308226663048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4019192 and 4019201.

It is not an unprimeable number, because it can be changed into a prime (4019219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143530 + ... + 143557.

It is an arithmetic number, because the mean of its divisors is an integer number (861264).

Almost surely, 2^4019218 is an apocalyptic number.

4019218 is a deficient number, since it is larger than the sum of its proper divisors (2870894).

4019218 is a wasteful number, since it uses less digits than its factorization.

4019218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287096.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 4019218 is about 2004.7987430164. The cubic root of 4019218 is about 158.9939214216.

The spelling of 4019218 in words is "four million, nineteen thousand, two hundred eighteen".