4419994 has 4 divisors (see below), whose sum is σ = 6629994. Its totient is φ = 2209996.

The previous prime is 4419991. The next prime is 4420001. The reversal of 4419994 is 4999144.

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., 4255969 + 164025 = 2063^2 + 405^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4419991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1104997 + ... + 1105000.

Almost surely, 2^4419994 is an apocalyptic number.

4419994 is a deficient number, since it is larger than the sum of its proper divisors (2210000).

4419994 is a wasteful number, since it uses less digits than its factorization.

4419994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2209999.

The product of its digits is 46656, while the sum is 40.

The square root of 4419994 is about 2102.3781772079. The cubic root of 4419994 is about 164.1120838006.

The spelling of 4419994 in words is "four million, four hundred nineteen thousand, nine hundred ninety-four".