398338118 has 8 divisors (see below), whose sum is σ = 632654712. Its totient is φ = 187453216.

The previous prime is 398338117. The next prime is 398338121. The reversal of 398338118 is 811833893.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398338117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5857880 + ... + 5857947.

It is an arithmetic number, because the mean of its divisors is an integer number (79081839).

Almost surely, 2^398338118 is an apocalyptic number.

398338118 is a deficient number, since it is larger than the sum of its proper divisors (234316594).

398338118 is a wasteful number, since it uses less digits than its factorization.

398338118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11715846.

The product of its digits is 124416, while the sum is 44.

The square root of 398338118 is about 19958.4097061865. The cubic root of 398338118 is about 735.7844790251.

The spelling of 398338118 in words is "three hundred ninety-eight million, three hundred thirty-eight thousand, one hundred eighteen".