2206481 has 4 divisors (see below), whose sum is σ = 2336292. Its totient is φ = 2076672.

The previous prime is 2206471. The next prime is 2206483. The reversal of 2206481 is 1846022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1795600 + 410881 = 1340^2 + 641^2 .

It is a cyclic number.

It is not a de Polignac number, because 2206481 - 2⁶ = 2206417 is a prime.

It is a super-2 number, since 2×2206481² = 9737116806722, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹¹ + 2¹⁹ + 0 + 6⁸ + 4² + 8³ + 1 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2206483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64880 + ... + 64913.

It is an arithmetic number, because the mean of its divisors is an integer number (584073).

2^2206481 is an apocalyptic number.

It is an amenable number.

2206481 is a deficient number, since it is larger than the sum of its proper divisors (129811).

2206481 is a wasteful number, since it uses less digits than its factorization.

2206481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129810.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 2206481 is about 1485.4228354243. The cubic root of 2206481 is about 130.1867336175.

The spelling of 2206481 in words is "two million, two hundred six thousand, four hundred eighty-one".