4019418 has 48 divisors (see below), whose sum is σ = 9533160. Its totient is φ = 1216512.

The previous prime is 4019413. The next prime is 4019419. The reversal of 4019418 is 8149104.

It can be written as a sum of positive squares in 4 ways, for example, as 1595169 + 2424249 = 1263^2 + 1557^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4019391 and 4019400.

It is not an unprimeable number, because it can be changed into a prime (4019413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20730 + ... + 20922.

Almost surely, 2^4019418 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4019418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4766580).

4019418 is an abundant number, since it is smaller than the sum of its proper divisors (5513742).

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

4019418 is a wasteful number, since it uses less digits than its factorization.

4019418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 4019418 is about 2004.8486227144. The cubic root of 4019418 is about 158.9965586059.

The spelling of 4019418 in words is "four million, nineteen thousand, four hundred eighteen".