198550444 has 12 divisors (see below), whose sum is σ = 362570544. Its totient is φ = 94958864.

The previous prime is 198550433. The next prime is 198550453. The reversal of 198550444 is 444055891.

It is a junction number, because it is equal to n+sod(n) for n = 198550397 and 198550406.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1078987 + ... + 1079170.

It is an arithmetic number, because the mean of its divisors is an integer number (30214212).

Almost surely, 2^198550444 is an apocalyptic number.

It is an amenable number.

198550444 is a deficient number, since it is larger than the sum of its proper divisors (164020100).

198550444 is a wasteful number, since it uses less digits than its factorization.

198550444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2158184 (or 2158182 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 198550444 is about 14090.7928804592. The cubic root of 198550444 is about 583.3872780226.

The spelling of 198550444 in words is "one hundred ninety-eight million, five hundred fifty thousand, four hundred forty-four".