2161296 has 40 divisors (see below), whose sum is σ = 6204960. Its totient is φ = 720288.

The previous prime is 2161279. The next prime is 2161297. The reversal of 2161296 is 6921612.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2161297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2070 + ... + 2933.

It is an arithmetic number, because the mean of its divisors is an integer number (155124).

2^2161296 is an apocalyptic number.

It is an amenable number.

2161296 is an abundant number, since it is smaller than the sum of its proper divisors (4043664).

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

2161296 is a wasteful number, since it uses less digits than its factorization.

2161296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5020 (or 5008 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 2161296 is about 1470.1346877072. The cubic root of 2161296 is about 129.2919294493.

It can be divided in two parts, 216 and 1296, that multiplied together give a 7-th power (279936 = 6⁷).

The spelling of 2161296 in words is "two million, one hundred sixty-one thousand, two hundred ninety-six".