198440262 has 12 divisors (see below), whose sum is σ = 429953940. Its totient is φ = 66146748.

The previous prime is 198440239. The next prime is 198440273. The reversal of 198440262 is 262044891.

198440262 is a `hidden beast` number, since 198 + 4 + 402 + 62 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5512212 + ... + 5512247.

It is an arithmetic number, because the mean of its divisors is an integer number (35829495).

Almost surely, 2^198440262 is an apocalyptic number.

198440262 is an abundant number, since it is smaller than the sum of its proper divisors (231513678).

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

198440262 is a wasteful number, since it uses less digits than its factorization.

198440262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11024467 (or 11024464 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 198440262 is about 14086.8826217868. The cubic root of 198440262 is about 583.2793446270.

The spelling of 198440262 in words is "one hundred ninety-eight million, four hundred forty thousand, two hundred sixty-two".