2206491 has 8 divisors (see below), whose sum is σ = 3362304. Its totient is φ = 1260840.

The previous prime is 2206483. The next prime is 2206493. The reversal of 2206491 is 1946022.

2206491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2206491 - 2³ = 2206483 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2206493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52515 + ... + 52556.

It is an arithmetic number, because the mean of its divisors is an integer number (420288).

2^2206491 is an apocalyptic number.

2206491 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2206491 is a deficient number, since it is larger than the sum of its proper divisors (1155813).

2206491 is a wasteful number, since it uses less digits than its factorization.

2206491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105081.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 2206491 is about 1485.4262014654. The cubic root of 2206491 is about 130.1869302904.

It can be divided in two parts, 22064 and 91, that added together give a triangular number (22155 = T₂₁₀).

The spelling of 2206491 in words is "two million, two hundred six thousand, four hundred ninety-one".