4398423 has 8 divisors (see below), whose sum is σ = 5881200. Its totient is φ = 2923968.

The previous prime is 4398421. The next prime is 4398431. The reversal of 4398423 is 3248934.

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

It is not a de Polignac number, because 4398423 - 2¹ = 4398421 is a prime.

It is a super-2 number, since 2×4398423² = 38692249773858, which contains 22 as substring.

It is an Ulam number.

4398423 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4398421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 718 + ... + 3051.

It is an arithmetic number, because the mean of its divisors is an integer number (735150).

Almost surely, 2^4398423 is an apocalyptic number.

4398423 is a deficient number, since it is larger than the sum of its proper divisors (1482777).

4398423 is a wasteful number, since it uses less digits than its factorization.

4398423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4161.

The product of its digits is 20736, while the sum is 33.

The square root of 4398423 is about 2097.2417600267. The cubic root of 4398423 is about 163.8446749680.

The spelling of 4398423 in words is "four million, three hundred ninety-eight thousand, four hundred twenty-three".