4393994 has 24 divisors (see below), whose sum is σ = 7379904. Its totient is φ = 1960200.

The previous prime is 4393981. The next prime is 4393999. The reversal of 4393994 is 4993934.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4393999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16079 + ... + 16349.

It is an arithmetic number, because the mean of its divisors is an integer number (307496).

Almost surely, 2^4393994 is an apocalyptic number.

4393994 is a deficient number, since it is larger than the sum of its proper divisors (2985910).

4393994 is a wasteful number, since it uses less digits than its factorization.

4393994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 351 counting only the distinct ones).

The product of its digits is 104976, while the sum is 41.

The square root of 4393994 is about 2096.1855833871. The cubic root of 4393994 is about 163.7896619348.

The spelling of 4393994 in words is "four million, three hundred ninety-three thousand, nine hundred ninety-four".