4043394 has 12 divisors (see below), whose sum is σ = 8760726. Its totient is φ = 1347792.

The previous prime is 4043387. The next prime is 4043401. The reversal of 4043394 is 4933404.

4043394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4043387) and next prime (4043401).

It can be written as a sum of positive squares in only one way, i.e., 2387025 + 1656369 = 1545^2 + 1287^2 .

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 112299 + ... + 112334.

Almost surely, 2^4043394 is an apocalyptic number.

4043394 is an abundant number, since it is smaller than the sum of its proper divisors (4717332).

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

4043394 is a wasteful number, since it uses less digits than its factorization.

4043394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224641 (or 224638 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 4043394 is about 2010.8192360329. The cubic root of 4043394 is about 159.3120725042.

Adding to 4043394 its reverse (4933404), we get a palindrome (8976798).

It can be divided in two parts, 40 and 43394, that added together give a palindrome (43434).

The spelling of 4043394 in words is "four million, forty-three thousand, three hundred ninety-four".