398538196 has 12 divisors (see below), whose sum is σ = 797076448. Its totient is φ = 170802072.

The previous prime is 398538131. The next prime is 398538199. The reversal of 398538196 is 691835893.

398538196 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398538199) 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, 7116726 + ... + 7116781.

Almost surely, 2^398538196 is an apocalyptic number.

It is an amenable number.

398538196 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

398538196 is a wasteful number, since it uses less digits than its factorization.

398538196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14233518 (or 14233516 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 52.

The square root of 398538196 is about 19963.4214502424. The cubic root of 398538196 is about 735.9076487977.

The spelling of 398538196 in words is "three hundred ninety-eight million, five hundred thirty-eight thousand, one hundred ninety-six".