2188270 has 32 divisors (see below), whose sum is σ = 4612608. Its totient is φ = 731808.

The previous prime is 2188267. The next prime is 2188271. The reversal of 2188270 is 728812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2188271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2647 + ... + 3373.

It is an arithmetic number, because the mean of its divisors is an integer number (144144).

2^2188270 is an apocalyptic number.

2188270 is an abundant number, since it is smaller than the sum of its proper divisors (2424338).

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

2188270 is a wasteful number, since it uses less digits than its factorization.

2188270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 2188270 is about 1479.2802303823. The cubic root of 2188270 is about 129.8275820755.

It can be divided in two parts, 21882 and 70, that added together give a cube (21952 = 28³).

The spelling of 2188270 in words is "two million, one hundred eighty-eight thousand, two hundred seventy".