198428464 has 20 divisors (see below), whose sum is σ = 414029056. Its totient is φ = 91582272.

The previous prime is 198428453. The next prime is 198428507. The reversal of 198428464 is 464824891.

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, 476784 + ... + 477199.

Almost surely, 2^198428464 is an apocalyptic number.

It is an amenable number.

198428464 is an abundant number, since it is smaller than the sum of its proper divisors (215600592).

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

198428464 is a wasteful number, since it uses less digits than its factorization.

198428464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954004 (or 953998 counting only the distinct ones).

The product of its digits is 442368, while the sum is 46.

The square root of 198428464 is about 14086.4638571928. The cubic root of 198428464 is about 583.2677850338.

The spelling of 198428464 in words is "one hundred ninety-eight million, four hundred twenty-eight thousand, four hundred sixty-four".