2198308 has 12 divisors (see below), whose sum is σ = 4396672. Its totient is φ = 942120.

The previous prime is 2198293. The next prime is 2198309. The reversal of 2198308 is 8038912.

2198308 is an admirable number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2198308.

It is not an unprimeable number, because it can be changed into a prime (2198309) 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, 39228 + ... + 39283.

2^2198308 is an apocalyptic number.

2198308 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2198308 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2198308 is a wasteful number, since it uses less digits than its factorization.

2198308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78522 (or 78520 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 2198308 is about 1482.6692146261. The cubic root of 2198308 is about 130.0257936984.

The spelling of 2198308 in words is "two million, one hundred ninety-eight thousand, three hundred eight".