4505638 has 8 divisors (see below), whose sum is σ = 6941232. Its totient is φ = 2191896.

The previous prime is 4505623. The next prime is 4505647. The reversal of 4505638 is 8365054.

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

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30370 + ... + 30517.

It is an arithmetic number, because the mean of its divisors is an integer number (867654).

Almost surely, 2^4505638 is an apocalyptic number.

4505638 is a deficient number, since it is larger than the sum of its proper divisors (2435594).

4505638 is a wasteful number, since it uses less digits than its factorization.

4505638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60926.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 4505638 is about 2122.6488169266. The cubic root of 4505638 is about 165.1652828023.

The spelling of 4505638 in words is "four million, five hundred five thousand, six hundred thirty-eight".