198408064 has 32 divisors (see below), whose sum is σ = 395933400. Its totient is φ = 99036672.

The previous prime is 198408047. The next prime is 198408083. The reversal of 198408064 is 460804891.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

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, 115242 + ... + 116950.

Almost surely, 2^198408064 is an apocalyptic number.

It is an amenable number.

198408064 is a deficient number, since it is larger than the sum of its proper divisors (197525336).

198408064 is an equidigital number, since it uses as much as digits as its factorization.

198408064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2630 (or 2618 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 198408064 is about 14085.7397391830. The cubic root of 198408064 is about 583.2477961835.

The spelling of 198408064 in words is "one hundred ninety-eight million, four hundred eight thousand, sixty-four".