198226449 has 24 divisors (see below), whose sum is σ = 303732000. Its totient is φ = 124225920.

The previous prime is 198226447. The next prime is 198226451. The reversal of 198226449 is 944622891.

It is an interprime number because it is at equal distance from previous prime (198226447) and next prime (198226451).

It is not a de Polignac number, because 198226449 - 2¹ = 198226447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198226447) 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, 17977 + ... + 26825.

It is an arithmetic number, because the mean of its divisors is an integer number (12655500).

Almost surely, 2^198226449 is an apocalyptic number.

198226449 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

198226449 is a deficient number, since it is larger than the sum of its proper divisors (105505551).

198226449 is a wasteful number, since it uses less digits than its factorization.

198226449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9005 (or 9002 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 198226449 is about 14079.2914949581. The cubic root of 198226449 is about 583.0697810982.

The spelling of 198226449 in words is "one hundred ninety-eight million, two hundred twenty-six thousand, four hundred forty-nine".