2206261 has 8 divisors (see below), whose sum is σ = 2340800. Its totient is φ = 2073600.

The previous prime is 2206249. The next prime is 2206283. The reversal of 2206261 is 1626022.

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

It is a 5-Lehmer number, since φ(2206261) divides (2206261-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 2206261 - 2¹⁷ = 2075189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2206861) 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, 2485 + ... + 3253.

It is an arithmetic number, because the mean of its divisors is an integer number (292600).

2^2206261 is an apocalyptic number.

It is an amenable number.

2206261 is a deficient number, since it is larger than the sum of its proper divisors (134539).

2206261 is a wasteful number, since it uses less digits than its factorization.

2206261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2206261 is about 1485.3487805899. The cubic root of 2206261 is about 130.1824066623.

The spelling of 2206261 in words is "two million, two hundred six thousand, two hundred sixty-one".