2198456 has 16 divisors (see below), whose sum is σ = 4439400. Its totient is φ = 1014624.

The previous prime is 2198453. The next prime is 2198473. The reversal of 2198456 is 6548912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198453) 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, 10466 + ... + 10673.

2^2198456 is an apocalyptic number.

2198456 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2198456 is an abundant number, since it is smaller than the sum of its proper divisors (2240944).

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

2198456 is a wasteful number, since it uses less digits than its factorization.

2198456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21158 (or 21154 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 2198456 is about 1482.7191237723. The cubic root of 2198456 is about 130.0287116070.

The spelling of 2198456 in words is "two million, one hundred ninety-eight thousand, four hundred fifty-six".