198246401 has 8 divisors (see below), whose sum is σ = 213350184. Its totient is φ = 183525120.

The previous prime is 198246397. The next prime is 198246403. The reversal of 198246401 is 104642891.

It is a happy number.

It is a Cunningham number, because it is equal to 14080²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 198246400 = 1^2 + 14080^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 198246401 - 2² = 198246397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198246403) 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, 94550 + ... + 96623.

It is an arithmetic number, because the mean of its divisors is an integer number (26668773).

It is a Proth number, since it is equal to 3025 ⋅ 2¹⁶ + 1 and 3025 < 2¹⁶.

Almost surely, 2^198246401 is an apocalyptic number.

It is an amenable number.

198246401 is a deficient number, since it is larger than the sum of its proper divisors (15103783).

198246401 is a wasteful number, since it uses less digits than its factorization.

198246401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191251.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 198246401 is about 14080.0000355114. Note that the first 4 decimals coincide. The cubic root of 198246401 is about 583.0893429311.

The spelling of 198246401 in words is "one hundred ninety-eight million, two hundred forty-six thousand, four hundred one".