4638398 has 8 divisors (see below), whose sum is σ = 6967992. Its totient is φ = 2315736.

The previous prime is 4638397. The next prime is 4638407. The reversal of 4638398 is 8938364.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4638397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536 + ... + 3092.

It is an arithmetic number, because the mean of its divisors is an integer number (870999).

Almost surely, 2^4638398 is an apocalyptic number.

4638398 is a deficient number, since it is larger than the sum of its proper divisors (2329594).

4638398 is a wasteful number, since it uses less digits than its factorization.

4638398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3466.

The product of its digits is 124416, while the sum is 41.

The square root of 4638398 is about 2153.6940358370. The cubic root of 4638398 is about 166.7718207529.

The spelling of 4638398 in words is "four million, six hundred thirty-eight thousand, three hundred ninety-eight".