398676338 has 4 divisors (see below), whose sum is σ = 598014510. Its totient is φ = 199338168.

The previous prime is 398676283. The next prime is 398676347. The reversal of 398676338 is 833676893.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 271821169 + 126855169 = 16487^2 + 11263^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 398676338.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99669083 + ... + 99669086.

Almost surely, 2^398676338 is an apocalyptic number.

398676338 is a deficient number, since it is larger than the sum of its proper divisors (199338172).

398676338 is a wasteful number, since it uses less digits than its factorization.

398676338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199338171.

The product of its digits is 3919104, while the sum is 53.

The square root of 398676338 is about 19966.8810283429. The cubic root of 398676338 is about 735.9926661702.

The spelling of 398676338 in words is "three hundred ninety-eight million, six hundred seventy-six thousand, three hundred thirty-eight".