2162270 has 24 divisors (see below), whose sum is σ = 4280472. Its totient is φ = 785840.

The previous prime is 2162263. The next prime is 2162273. The reversal of 2162270 is 722612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 317 + ... + 2103.

It is an arithmetic number, because the mean of its divisors is an integer number (178353).

2^2162270 is an apocalyptic number.

2162270 is a deficient number, since it is larger than the sum of its proper divisors (2118202).

2162270 is a wasteful number, since it uses less digits than its factorization.

2162270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1816 (or 1805 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 2162270 is about 1470.4659125597. The cubic root of 2162270 is about 129.3113485736.

Adding to 2162270 its reverse (722612), we get a palindrome (2884882).

It can be divided in two parts, 2162 and 270, that multiplied together give a triangular number (583740 = T₁₀₈₀).

The spelling of 2162270 in words is "two million, one hundred sixty-two thousand, two hundred seventy".