198955954 has 16 divisors (see below), whose sum is σ = 324276480. Its totient is φ = 91201680.

The previous prime is 198955943. The next prime is 198955997. The reversal of 198955954 is 459559891.

It is a junction number, because it is equal to n+sod(n) for n = 198955895 and 198955904.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83269 + ... + 85624.

It is an arithmetic number, because the mean of its divisors is an integer number (20267280).

Almost surely, 2^198955954 is an apocalyptic number.

198955954 is a deficient number, since it is larger than the sum of its proper divisors (125320526).

198955954 is a wasteful number, since it uses less digits than its factorization.

198955954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168945.

The product of its digits is 2916000, while the sum is 55.

The square root of 198955954 is about 14105.1747241925. The cubic root of 198955954 is about 583.7841687743.

The spelling of 198955954 in words is "one hundred ninety-eight million, nine hundred fifty-five thousand, nine hundred fifty-four".