4394464 has 24 divisors (see below), whose sum is σ = 8754480. Its totient is φ = 2171136.

The previous prime is 4394461. The next prime is 4394473. The reversal of 4394464 is 4644934.

It is a happy number.

It is a super-2 number, since 2×4394464² = 38622627694592, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4² + 3¹¹ + 9⁴ + 4² + 4⁷ + 6² + 4¹¹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4394461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2077 + ... + 3619.

It is an arithmetic number, because the mean of its divisors is an integer number (364770).

Almost surely, 2^4394464 is an apocalyptic number.

It is an amenable number.

4394464 is a deficient number, since it is larger than the sum of its proper divisors (4360016).

4394464 is a wasteful number, since it uses less digits than its factorization.

4394464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1642 (or 1634 counting only the distinct ones).

The product of its digits is 41472, while the sum is 34.

The square root of 4394464 is about 2096.2976887837. The cubic root of 4394464 is about 163.7955016026.

The spelling of 4394464 in words is "four million, three hundred ninety-four thousand, four hundred sixty-four".