4564394 has 8 divisors (see below), whose sum is σ = 7031748. Its totient is φ = 2220480.

The previous prime is 4564393. The next prime is 4564411. The reversal of 4564394 is 4934654.

It can be written as a sum of positive squares in 2 ways, for example, as 3948169 + 616225 = 1987^2 + 785^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4564393) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 30767 + ... + 30914.

Almost surely, 2^4564394 is an apocalyptic number.

4564394 is a deficient number, since it is larger than the sum of its proper divisors (2467354).

4564394 is a wasteful number, since it uses less digits than its factorization.

4564394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61720.

The product of its digits is 51840, while the sum is 35.

The square root of 4564394 is about 2136.4442421931. Note that the first 3 decimals coincide. The cubic root of 4564394 is about 165.8801331401.

The spelling of 4564394 in words is "four million, five hundred sixty-four thousand, three hundred ninety-four".