198408396 has 24 divisors (see below), whose sum is σ = 483081984. Its totient is φ = 63260560.

The previous prime is 198408391. The next prime is 198408403. The reversal of 198408396 is 693804891.

It is not an unprimeable number, because it can be changed into a prime (198408391) 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, 359160 + ... + 359711.

It is an arithmetic number, because the mean of its divisors is an integer number (20128416).

Almost surely, 2^198408396 is an apocalyptic number.

It is an amenable number.

198408396 is an abundant number, since it is smaller than the sum of its proper divisors (284673588).

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

198408396 is a wasteful number, since it uses less digits than its factorization.

198408396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718901 (or 718899 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 198408396 is about 14085.7515241467. The cubic root of 198408396 is about 583.2481215032.

The spelling of 198408396 in words is "one hundred ninety-eight million, four hundred eight thousand, three hundred ninety-six".