2198754 has 48 divisors (see below), whose sum is σ = 5121792. Its totient is φ = 680064.

The previous prime is 2198747. The next prime is 2198759. The reversal of 2198754 is 4578912.

It is not an unprimeable number, because it can be changed into a prime (2198759) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19402 + ... + 19514.

It is an arithmetic number, because the mean of its divisors is an integer number (106704).

2^2198754 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2198754, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2560896).

2198754 is an abundant number, since it is smaller than the sum of its proper divisors (2923038).

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

2198754 is a wasteful number, since it uses less digits than its factorization.

2198754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 188 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 2198754 is about 1482.8196114160. The cubic root of 2198754 is about 130.0345864582.

The spelling of 2198754 in words is "two million, one hundred ninety-eight thousand, seven hundred fifty-four".