2198838 has 16 divisors (see below), whose sum is σ = 4549680. Its totient is φ = 707616.

The previous prime is 2198827. The next prime is 2198843. The reversal of 2198838 is 8388912.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2198796 and 2198805.

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, 6145 + ... + 6492.

It is an arithmetic number, because the mean of its divisors is an integer number (284355).

2^2198838 is an apocalyptic number.

2198838 is an abundant number, since it is smaller than the sum of its proper divisors (2350842).

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

2198838 is a wasteful number, since it uses less digits than its factorization.

2198838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12671.

The product of its digits is 27648, while the sum is 39.

The square root of 2198838 is about 1482.8479355618. The cubic root of 2198838 is about 130.0362423606.

The spelling of 2198838 in words is "two million, one hundred ninety-eight thousand, eight hundred thirty-eight".