4219994 has 16 divisors (see below), whose sum is σ = 6652800. Its totient is φ = 2003760.

The previous prime is 4219991. The next prime is 4220039. The reversal of 4219994 is 4999124.

It is a happy number.

It is a Curzon 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, 8924 + ... + 9384.

It is an arithmetic number, because the mean of its divisors is an integer number (415800).

Almost surely, 2^4219994 is an apocalyptic number.

4219994 is a deficient number, since it is larger than the sum of its proper divisors (2432806).

4219994 is a wasteful number, since it uses less digits than its factorization.

4219994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685.

The product of its digits is 23328, while the sum is 38.

The square root of 4219994 is about 2054.2623980397. The cubic root of 4219994 is about 161.5984823649.

The spelling of 4219994 in words is "four million, two hundred nineteen thousand, nine hundred ninety-four".