198406854 has 32 divisors (see below), whose sum is σ = 464112000. Its totient is φ = 62654472.

The previous prime is 198406843. The next prime is 198406861. The reversal of 198406854 is 458604891.

198406854 is a `hidden beast` number, since 198 + 406 + 8 + 54 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95664 + ... + 97715.

It is an arithmetic number, because the mean of its divisors is an integer number (14503500).

Almost surely, 2^198406854 is an apocalyptic number.

198406854 is an abundant number, since it is smaller than the sum of its proper divisors (265705146).

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

198406854 is a wasteful number, since it uses less digits than its factorization.

198406854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193409 (or 193403 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 198406854 is about 14085.6967878767. The cubic root of 198406854 is about 583.2466105273.

The spelling of 198406854 in words is "one hundred ninety-eight million, four hundred six thousand, eight hundred fifty-four".