198415395 has 24 divisors (see below), whose sum is σ = 345043296. Its totient is φ = 105475968.

The previous prime is 198415391. The next prime is 198415397. The reversal of 198415395 is 593514891.

198415395 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 14086²-1.

It is not a de Polignac number, because 198415395 - 2² = 198415391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 198415395.

It is not an unprimeable number, because it can be changed into a prime (198415391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7042 + ... + 21128.

It is an arithmetic number, because the mean of its divisors is an integer number (14376804).

Almost surely, 2^198415395 is an apocalyptic number.

198415395 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

198415395 is a deficient number, since it is larger than the sum of its proper divisors (146627901).

198415395 is a wasteful number, since it uses less digits than its factorization.

198415395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14411 (or 14408 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 198415395 is about 14085.9999645038. Note that the first 4 decimals coincide. The cubic root of 198415395 is about 583.2549795893.

The spelling of 198415395 in words is "one hundred ninety-eight million, four hundred fifteen thousand, three hundred ninety-five".