418866198 has 16 divisors (see below), whose sum is σ = 866620080. Its totient is φ = 134807456.

The previous prime is 418866131. The next prime is 418866221. The reversal of 418866198 is 891668814.

It is a self number, because there is not a number n which added to its sum of digits gives 418866198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1203465 + ... + 1203812.

It is an arithmetic number, because the mean of its divisors is an integer number (54163755).

Almost surely, 2^418866198 is an apocalyptic number.

418866198 is an abundant number, since it is smaller than the sum of its proper divisors (447753882).

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

418866198 is a wasteful number, since it uses less digits than its factorization.

418866198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407311.

The product of its digits is 663552, while the sum is 51.

The square root of 418866198 is about 20466.2209017688. The cubic root of 418866198 is about 748.2127505914.

It can be divided in two parts, 41886 and 6198, that added together give a palindrome (48084).

The spelling of 418866198 in words is "four hundred eighteen million, eight hundred sixty-six thousand, one hundred ninety-eight".