2164070 has 24 divisors (see below), whose sum is σ = 4107024. Its totient is φ = 819456.

The previous prime is 2164039. The next prime is 2164073. The reversal of 2164070 is 704612.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22262 + ... + 22358.

It is an arithmetic number, because the mean of its divisors is an integer number (171126).

2^2164070 is an apocalyptic number.

2164070 is a deficient number, since it is larger than the sum of its proper divisors (1942954).

2164070 is an equidigital number, since it uses as much as digits as its factorization.

2164070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 127 counting only the distinct ones).

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

The square root of 2164070 is about 1471.0778361460. The cubic root of 2164070 is about 129.3472207310.

Adding to 2164070 its reverse (704612), we get a palindrome (2868682).

The spelling of 2164070 in words is "two million, one hundred sixty-four thousand, seventy".