4390424 has 32 divisors (see below), whose sum is σ = 8709120. Its totient is φ = 2070816.

The previous prime is 4390417. The next prime is 4390433. The reversal of 4390424 is 4240934.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 4390393 and 4390402.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 19577 + ... + 19799.

It is an arithmetic number, because the mean of its divisors is an integer number (272160).

Almost surely, 2^4390424 is an apocalyptic number.

It is an amenable number.

4390424 is a deficient number, since it is larger than the sum of its proper divisors (4318696).

4390424 is a wasteful number, since it uses less digits than its factorization.

4390424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 4390424 is about 2095.3338636122. Note that the first 3 decimals coincide. The cubic root of 4390424 is about 163.7452917085.

The spelling of 4390424 in words is "four million, three hundred ninety thousand, four hundred twenty-four".