2188446 has 16 divisors (see below), whose sum is σ = 4713744. Its totient is φ = 673344.

The previous prime is 2188429. The next prime is 2188447. The reversal of 2188446 is 6448812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2188447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13951 + ... + 14106.

It is an arithmetic number, because the mean of its divisors is an integer number (294609).

2^2188446 is an apocalyptic number.

2188446 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2188446 is an abundant number, since it is smaller than the sum of its proper divisors (2525298).

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

2188446 is a wasteful number, since it uses less digits than its factorization.

2188446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28075.

The product of its digits is 12288, while the sum is 33.

The square root of 2188446 is about 1479.3397175767. The cubic root of 2188446 is about 129.8310626091.

The spelling of 2188446 in words is "two million, one hundred eighty-eight thousand, four hundred forty-six".