4219394 has 4 divisors (see below), whose sum is σ = 6329094. Its totient is φ = 2109696.

The previous prime is 4219363. The next prime is 4219427. The reversal of 4219394 is 4939124.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3853369 + 366025 = 1963^2 + 605^2 .

It is a super-3 number, since 3×4219394³ (a number of 21 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4219394.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054847 + ... + 1054850.

Almost surely, 2^4219394 is an apocalyptic number.

4219394 is a deficient number, since it is larger than the sum of its proper divisors (2109700).

4219394 is a wasteful number, since it uses less digits than its factorization.

4219394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2109699.

The product of its digits is 7776, while the sum is 32.

The square root of 4219394 is about 2054.1163550296. The cubic root of 4219394 is about 161.5908232952.

The spelling of 4219394 in words is "four million, two hundred nineteen thousand, three hundred ninety-four".