398423333 has 16 divisors (see below), whose sum is σ = 497172480. Its totient is φ = 310186800.

The previous prime is 398423321. The next prime is 398423359. The reversal of 398423333 is 333324893.

It is not a de Polignac number, because 398423333 - 2⁴ = 398423317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398423303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171248 + ... + 173558.

It is an arithmetic number, because the mean of its divisors is an integer number (31073280).

Almost surely, 2^398423333 is an apocalyptic number.

It is an amenable number.

398423333 is a deficient number, since it is larger than the sum of its proper divisors (98749147).

398423333 is a wasteful number, since it uses less digits than its factorization.

398423333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4568.

The product of its digits is 139968, while the sum is 38.

The square root of 398423333 is about 19960.5444064033. The cubic root of 398423333 is about 735.8369431680.

The spelling of 398423333 in words is "three hundred ninety-eight million, four hundred twenty-three thousand, three hundred thirty-three".