198343446 has 16 divisors (see below), whose sum is σ = 453356544. Its totient is φ = 56669544.

The previous prime is 198343423. The next prime is 198343447. The reversal of 198343446 is 644343891.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 4722463 = 198343446 / (1 + 9 + 8 + 3 + 4 + 3 + 4 + 4 + 6).

It is a junction number, because it is equal to n+sod(n) for n = 198343398 and 198343407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198343447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2361190 + ... + 2361273.

It is an arithmetic number, because the mean of its divisors is an integer number (28334784).

Almost surely, 2^198343446 is an apocalyptic number.

198343446 is an abundant number, since it is smaller than the sum of its proper divisors (255013098).

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

198343446 is a wasteful number, since it uses less digits than its factorization.

198343446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4722475.

The product of its digits is 248832, while the sum is 42.

The square root of 198343446 is about 14083.4458141465. The cubic root of 198343446 is about 583.1844714752.

The spelling of 198343446 in words is "one hundred ninety-eight million, three hundred forty-three thousand, four hundred forty-six".