4393042 has 8 divisors (see below), whose sum is σ = 6638076. Its totient is φ = 2180352.

The previous prime is 4393031. The next prime is 4393061. The reversal of 4393042 is 2403934.

It can be written as a sum of positive squares in 2 ways, for example, as 3956121 + 436921 = 1989^2 + 661^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 4392998 and 4393016.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7743 + ... + 8290.

Almost surely, 2^4393042 is an apocalyptic number.

4393042 is a deficient number, since it is larger than the sum of its proper divisors (2245034).

4393042 is a wasteful number, since it uses less digits than its factorization.

4393042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16172.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 4393042 is about 2095.9584919554. The cubic root of 4393042 is about 163.7778322250. Note that the first 3 decimals are identical.

Adding to 4393042 its reverse (2403934), we get a palindrome (6796976).

It can be divided in two parts, 439 and 3042, that added together give a square (3481 = 59²).

The spelling of 4393042 in words is "four million, three hundred ninety-three thousand, forty-two".