2164288 has 28 divisors (see below), whose sum is σ = 4909312. Its totient is φ = 927360.

The previous prime is 2164273. The next prime is 2164291. The reversal of 2164288 is 8824612.

It is a tau number, because it is divible by the number of its divisors (28).

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1968 + ... + 2863.

2^2164288 is an apocalyptic number.

2164288 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2164288 is an abundant number, since it is smaller than the sum of its proper divisors (2745024).

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

2164288 is an equidigital number, since it uses as much as digits as its factorization.

2164288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4850 (or 4840 counting only the distinct ones).

The product of its digits is 6144, while the sum is 31.

The square root of 2164288 is about 1471.1519296116. The cubic root of 2164288 is about 129.3515638972.

The spelling of 2164288 in words is "two million, one hundred sixty-four thousand, two hundred eighty-eight".