398426223 has 8 divisors (see below), whose sum is σ = 572099248. Its totient is φ = 245185344.

The previous prime is 398426221. The next prime is 398426243. The reversal of 398426223 is 322624893.

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

It is not a de Polignac number, because 398426223 - 2¹ = 398426221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 10216057 = 398426223 / (3 + 9 + 8 + 4 + 2 + 6 + 2 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398426221) 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, 5107990 + ... + 5108067.

It is an arithmetic number, because the mean of its divisors is an integer number (71512406).

Almost surely, 2^398426223 is an apocalyptic number.

398426223 is a deficient number, since it is larger than the sum of its proper divisors (173673025).

398426223 is a wasteful number, since it uses less digits than its factorization.

398426223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10216073.

The product of its digits is 124416, while the sum is 39.

The square root of 398426223 is about 19960.6167990871. The cubic root of 398426223 is about 735.8387223172.

The spelling of 398426223 in words is "three hundred ninety-eight million, four hundred twenty-six thousand, two hundred twenty-three".