198511896 has 64 divisors (see below), whose sum is σ = 564952320. Its totient is φ = 57537920.

The previous prime is 198511861. The next prime is 198511909. The reversal of 198511896 is 698115891.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10275 + ... + 22418.

It is an arithmetic number, because the mean of its divisors is an integer number (8827380).

Almost surely, 2^198511896 is an apocalyptic number.

It is an amenable number.

198511896 is an abundant number, since it is smaller than the sum of its proper divisors (366440424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198511896 is a wasteful number, since it uses less digits than its factorization.

198511896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32736 (or 32732 counting only the distinct ones).

The product of its digits is 155520, while the sum is 48.

The square root of 198511896 is about 14089.4249705231. The cubic root of 198511896 is about 583.3495212560.

The spelling of 198511896 in words is "one hundred ninety-eight million, five hundred eleven thousand, eight hundred ninety-six".