398337266 has 8 divisors (see below), whose sum is σ = 600071004. Its totient is φ = 198313600.

The previous prime is 398337221. The next prime is 398337283. The reversal of 398337266 is 662733893.

It can be written as a sum of positive squares in 2 ways, for example, as 326850241 + 71487025 = 18079^2 + 8455^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 398337266.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426935 + ... + 427866.

Almost surely, 2^398337266 is an apocalyptic number.

398337266 is a deficient number, since it is larger than the sum of its proper divisors (201733738).

398337266 is a wasteful number, since it uses less digits than its factorization.

398337266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855036.

The product of its digits is 979776, while the sum is 47.

The square root of 398337266 is about 19958.3883617891. The cubic root of 398337266 is about 735.7839544383.

The spelling of 398337266 in words is "three hundred ninety-eight million, three hundred thirty-seven thousand, two hundred sixty-six".