4442636 has 36 divisors (see below), whose sum is σ = 8736504. Its totient is φ = 1974720.

The previous prime is 4442623. The next prime is 4442639. The reversal of 4442636 is 6362444.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4442599 and 4442608.

It is not an unprimeable number, because it can be changed into a prime (4442639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32360 + ... + 32496.

Almost surely, 2^4442636 is an apocalyptic number.

It is an amenable number.

4442636 is a deficient number, since it is larger than the sum of its proper divisors (4293868).

4442636 is a wasteful number, since it uses less digits than its factorization.

4442636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 217 counting only the distinct ones).

The product of its digits is 13824, while the sum is 29.

The square root of 4442636 is about 2107.7561528792. The cubic root of 4442636 is about 164.3918352258.

The spelling of 4442636 in words is "four million, four hundred forty-two thousand, six hundred thirty-six".