198274404 has 12 divisors (see below), whose sum is σ = 462640304. Its totient is φ = 66091464.

The previous prime is 198274369. The next prime is 198274409. The reversal of 198274404 is 404472891.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (198274409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8261422 + ... + 8261445.

Almost surely, 2^198274404 is an apocalyptic number.

It is an amenable number.

198274404 is an abundant number, since it is smaller than the sum of its proper divisors (264365900).

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

198274404 is a wasteful number, since it uses less digits than its factorization.

198274404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16522874 (or 16522872 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 198274404 is about 14080.9944251107. The cubic root of 198274404 is about 583.1167961106.

The spelling of 198274404 in words is "one hundred ninety-eight million, two hundred seventy-four thousand, four hundred four".