2164370 has 16 divisors (see below), whose sum is σ = 4195800. Its totient is φ = 799104.

The previous prime is 2164367. The next prime is 2164387. The reversal of 2164370 is 734612.

It can be written as a sum of positive squares in 4 ways, for example, as 1635841 + 528529 = 1279^2 + 727^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8195 + ... + 8454.

2^2164370 is an apocalyptic number.

2164370 is a deficient number, since it is larger than the sum of its proper divisors (2031430).

2164370 is a wasteful number, since it uses less digits than its factorization.

2164370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16669.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 2164370 is about 1471.1797986650. The cubic root of 2164370 is about 129.3531974898.

Adding to 2164370 its reverse (734612), we get a palindrome (2898982).

The spelling of 2164370 in words is "two million, one hundred sixty-four thousand, three hundred seventy".