4219998 has 16 divisors (see below), whose sum is σ = 8668560. Its totient is φ = 1368576.

The previous prime is 4219991. The next prime is 4220039. The reversal of 4219998 is 8999124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4219991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9283 + ... + 9726.

It is an arithmetic number, because the mean of its divisors is an integer number (541785).

Almost surely, 2^4219998 is an apocalyptic number.

4219998 is an abundant number, since it is smaller than the sum of its proper divisors (4448562).

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

4219998 is a wasteful number, since it uses less digits than its factorization.

4219998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19051.

The product of its digits is 46656, while the sum is 42.

The square root of 4219998 is about 2054.2633716250. The cubic root of 4219998 is about 161.5985334230.

The spelling of 4219998 in words is "four million, two hundred nineteen thousand, nine hundred ninety-eight".