199398424 has 16 divisors (see below), whose sum is σ = 374026320. Its totient is φ = 99658080.

The previous prime is 199398413. The next prime is 199398467. The reversal of 199398424 is 424893991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28102 + ... + 34474.

It is an arithmetic number, because the mean of its divisors is an integer number (23376645).

Almost surely, 2^199398424 is an apocalyptic number.

It is an amenable number.

199398424 is a deficient number, since it is larger than the sum of its proper divisors (174627896).

199398424 is a wasteful number, since it uses less digits than its factorization.

199398424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10290 (or 10286 counting only the distinct ones).

The product of its digits is 559872, while the sum is 49.

The square root of 199398424 is about 14120.8506825899. The cubic root of 199398424 is about 584.2166191468.

The spelling of 199398424 in words is "one hundred ninety-nine million, three hundred ninety-eight thousand, four hundred twenty-four".