2188468 has 12 divisors (see below), whose sum is σ = 3868452. Its totient is φ = 1083200.

The previous prime is 2188463. The next prime is 2188481. The reversal of 2188468 is 8648812.

It can be written as a sum of positive squares in 2 ways, for example, as 1192464 + 996004 = 1092^2 + 998^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2188463) 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, 2305 + ... + 3112.

It is an arithmetic number, because the mean of its divisors is an integer number (322371).

2^2188468 is an apocalyptic number.

It is an amenable number.

2188468 is a deficient number, since it is larger than the sum of its proper divisors (1679984).

2188468 is a wasteful number, since it uses less digits than its factorization.

2188468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5522 (or 5520 counting only the distinct ones).

The product of its digits is 24576, while the sum is 37.

The square root of 2188468 is about 1479.3471533078. The cubic root of 2188468 is about 129.8314976627.

It can be divided in two parts, 21884 and 68, that added together give a cube (21952 = 28³).

The spelling of 2188468 in words is "two million, one hundred eighty-eight thousand, four hundred sixty-eight".