198457916 has 6 divisors (see below), whose sum is σ = 347301360. Its totient is φ = 99228956.

The previous prime is 198457913. The next prime is 198457921. The reversal of 198457916 is 619754891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198457913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24807236 + ... + 24807243.

It is an arithmetic number, because the mean of its divisors is an integer number (57883560).

Almost surely, 2^198457916 is an apocalyptic number.

It is an amenable number.

198457916 is a deficient number, since it is larger than the sum of its proper divisors (148843444).

198457916 is a wasteful number, since it uses less digits than its factorization.

198457916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49614483 (or 49614481 counting only the distinct ones).

The product of its digits is 544320, while the sum is 50.

The square root of 198457916 is about 14087.5092191629. The cubic root of 198457916 is about 583.2966410299.

The spelling of 198457916 in words is "one hundred ninety-eight million, four hundred fifty-seven thousand, nine hundred sixteen".