4220019 has 20 divisors (see below), whose sum is σ = 6429456. Its totient is φ = 2757456.

The previous prime is 4219991. The next prime is 4220039. The reversal of 4220019 is 9100224.

It is not a de Polignac number, because 4220019 - 2⁵ = 4219987 is a prime.

It is a super-2 number, since 2×4220019² = 35617120720722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4219983 and 4220010.

It is not an unprimeable number, because it can be changed into a prime (4220039) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3802 + ... + 4784.

Almost surely, 2^4220019 is an apocalyptic number.

4220019 is a deficient number, since it is larger than the sum of its proper divisors (2209437).

4220019 is an equidigital number, since it uses as much as digits as its factorization.

4220019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 4220019 is about 2054.2684829399. The cubic root of 4220019 is about 161.5988014771.

The spelling of 4220019 in words is "four million, two hundred twenty thousand, nineteen".