2164928 has 14 divisors (see below), whose sum is σ = 4296156. Its totient is φ = 1082432.

The previous prime is 2164927. The next prime is 2164963. The reversal of 2164928 is 8294612.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹³ + 1 + 6 + 4² + 9⁵ + 2²¹ + 8³ .

It is a junction number, because it is equal to n+sod(n) for n = 2164894 and 2164903.

It is not an unprimeable number, because it can be changed into a prime (2164927) by changing a digit.

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 as a sum of consecutive naturals, namely, 16850 + ... + 16977.

2^2164928 is an apocalyptic number.

It is an amenable number.

2164928 is a deficient number, since it is larger than the sum of its proper divisors (2131228).

2164928 is an equidigital number, since it uses as much as digits as its factorization.

2164928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33839 (or 33829 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 2164928 is about 1471.3694301568. The cubic root of 2164928 is about 129.3643127923.

The spelling of 2164928 in words is "two million, one hundred sixty-four thousand, nine hundred twenty-eight".