198350745 has 16 divisors (see below), whose sum is σ = 318451392. Its totient is φ = 105423680.

The previous prime is 198350707. The next prime is 198350777. The reversal of 198350745 is 547053891.

It is not a de Polignac number, because 198350745 - 2⁶ = 198350681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 198350697 and 198350706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18171 + ... + 26960.

It is an arithmetic number, because the mean of its divisors is an integer number (19903212).

Almost surely, 2^198350745 is an apocalyptic number.

198350745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

198350745 is a deficient number, since it is larger than the sum of its proper divisors (120100647).

198350745 is a wasteful number, since it uses less digits than its factorization.

198350745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45432.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 198350745 is about 14083.7049457875. The cubic root of 198350745 is about 583.1916250790.

The spelling of 198350745 in words is "one hundred ninety-eight million, three hundred fifty thousand, seven hundred forty-five".