4390394 has 8 divisors (see below), whose sum is σ = 6624180. Its totient is φ = 2182336.

The previous prime is 4390381. The next prime is 4390409. The reversal of 4390394 is 4930934.

It can be written as a sum of positive squares in 2 ways, for example, as 4389025 + 1369 = 2095^2 + 37^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 4390394.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5999 + ... + 6690.

Almost surely, 2^4390394 is an apocalyptic number.

4390394 is a deficient number, since it is larger than the sum of its proper divisors (2233786).

4390394 is a wasteful number, since it uses less digits than its factorization.

4390394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12864.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 4390394 is about 2095.3267048363. The cubic root of 4390394 is about 163.7449187476.

The spelling of 4390394 in words is "four million, three hundred ninety thousand, three hundred ninety-four".